A participant in the “No Pants Subway Ride” sits in the Q subway from Times Square, as other passengers talk in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Youngsters, taking part in the first edition of the No Pants Subway Ride, are backdropped by a painting depicting early 18th century Romanian ruler Constantin Brancoveanu as a saint, in Bucharest, Romania, Sunday, January 11, 2015. (Photo by Vadim Ghirda/AP Photo)

Participants take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Passengers sit near a participant in the “No Pants Subway Ride” in the Q subway from Times Square in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Participants take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Participants stand against as wall as they take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

A participant takes part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Participants taking part in the “No Pants Subway Ride” stand near passengers in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Participants taking part in the “No Pants Subway Ride” stand near a woman, who later took off her pants as part of the event, in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

A man, wearing a bear costume, knits as he takes part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

People look at a participant taking part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Participants walk as they take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

People take photos of a participant taking part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Participants take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

People take photos of participants taking part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

A pregnant woman takes part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

A participant taking part in the “No Pants Subway Ride” stands near an advertisement in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

People, taking part in the “No Pants Subway Ride”, play with hula hoops in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

People, taking part in the “No Pants Subway Ride”, play with hula hoops in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

People take photos of a participant taking part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Participants take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

A man looks at a participant taking part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

A woman sleeps as people take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

A woman, who took part in the “No Pants Subway Ride”, poses for a photo in front of the Empire State Building in the Manhattan borough of New York January 11, 2015. The building was lit up in the colors of the French flag and with its lights off to pay tribute to the victims of the shooting by gunmen at the offices of weekly satirical magazine Charlie Hebdo in Paris. (Photo by Carlo Allegri/Reuters)

Participants take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

Participants take part in the “No Pants Subway Ride” in the Manhattan borough of New York January 11, 2015. (Photo by Carlo Allegri/Reuters)

A man (R) takes off his pants at the Westlake light rail station during the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. (Photo by Jason Redmond/Reuters)

Two women (L) talk while participating the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. Kelsey Wildstone of Emerald City Improv said the event is a local version of the No Pants Subway Ride started by Improv Everywhere in New York in 2002. (Photo by Jason Redmond/Reuters)

Transit security (L) checks riders' fares as people participate in the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. (Photo by Jason Redmond/Reuters)

A participant shows off his underwear flask pocket during the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. (Photo by Jason Redmond/Reuters)

People without pants arrive at a rail station during the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. (Photo by Jason Redmond/Reuters)

Luke Walker of Seattle poses for photos during the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. (Photo by Jason Redmond/Reuters)

A participant adjusts her underwear during the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. (Photo by Jason Redmond/Reuters)

A man in his underwear waits to board an arriving light rail train during the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. (Photo by Jason Redmond/Reuters)

Employees at Seattle-Tacoma International Airport watch people without pants walk past during the annual No Pants Light Rail Ride organized by the Emerald City Improv group in Seattle, Washington January 11, 2015. (Photo by Jason Redmond/Reuters)

Participants in underwear walk through the Times Square subway station during the 14th Annual “No Pants Subway Ride” in New York, NY, on January 11, 2014. The event is organized by New York City prank collective Improv Everywhere. (Photo by Anthony Behar/SIPA Press)

Karina (R) and Nicola, participants of the “No Pants Subway Ride Hamburg 2015”, pose in a subway station in Hamburg, Germany, 11 January 2015. The No Pants Subway Ride is an annual event, which started 2002 in New York/USA, finds participants all over the World. (Photo by Christian Charisius/DPA)

January 11, 2015; New York, New York, U.S. The No Pants Subway Ride is an annual event staged by Improv Everywhere. It's the 14th annual event participants from cities and countries around the world go on mass transit with no pants on. (Photo by Bruce Cotler/Globe Photos/ZUMA Wire)

January 11, 2015; New York City, NY, USA. Participants take part in the annual No Pants Subway Ride on January 11 2015 in New York City. Started in 2002 by founder Charlie Todd, the event has spread to other Cities around the world. It also draws participants into the City, who spend the day riding the New York Subway in their underwear. (Photo by Curtis Means/Ace Pictures/ZUMA Wire)

January 11, 2015; Jerusalem, Israel. “Improv Israel” hosts the 3rd annual Jerusalem No Pants Tram Ride with the sole purpose of causing chaos, and bringing joy. (Photo by Nir Alon/ZUMA Wire)

Passengers sit next to youngsters riding on a train as they take part in the first edition of the No Pants Subway Ride in Bucharest, Romania, Sunday, January 11, 2015. (Photo by Vadim Ghirda/AP Photo)

Participants in the No Pants Subway Ride DC, waits for a train at the Gallery Place – Chinatown stop on January 11, 2015 in Washington, DC. (Photo by Mandel Ngan/AFP Photo)

A participant in the No Pants Subway Ride waits for a train in New York subway on January 11, 2015 in New York. (Photo by Timothy A. Clary/AFP Photo)

A couple kisses in the subway during the worldwide “No Pants Subway Ride” event in Mexico City on January 11, 2015. (Photo by Ronaldo Schemidt/AFP Photo)

A participant in the No Pants Subway Ride waits for a train next to police officers in New York subway on January 11, 2015 in New York. (Photo by Timothy A. Clary/AFP Photo)

A participant in the No Pants Subway Ride in her underwear enters the New York subway on January 11, 2015 in New York. (Photo by Timothy A. Clary/AFP Photo)

People take escalators as they take part in the annual “No Trousers On The Tube Day” event in central London on January 11, 2015. Originally started in the US, the international event, also known as the “No Pants Subway Ride” was created by improvisation group “Improv Everywhere” and sees people taking train journies while wearing no trousers, yet acting as normally as possible. (Photo by Leon Neal/AFP Photo)

People walk through a subway station during the worldwide “No Pants Subway Ride” event in Mexico City on January 11, 2015. (Photo by Ronaldo Schemidt/AFP Photo)

A participant in the No Pants Subway Ride DC lifts a fellow participant while waiting for a train at the Gallery Place – Chinatown station on January 11, 2015 in Washington, DC. (Photo by Mandel Ngan/AFP Photo)

Some participants in the No Pants Subway Ride wait for a train in their underwear in New York subway on January 11, 2015 in New York. (Photo by Timothy A. Clary/AFP Photo)

Some participants in the No Pants Subway Ride wait for a train in their underwear in New York subway on January 11, 2015 in New York. The No Pants Subway Ride is an annual which was started in 2002 by Improv Everywhere in New York, the goal is for riders to get on the subway train dressed in normal winter clothes without pants and keep a straight face. (Photo by Timothy A. Clary/AFP Photo)

An elderly woman, left, looks at a man who lacks his pants during the annual “No Pants Subway Ride” at a subway station in Mexico City, Sunday, January 11, 2015. The annual No Pants Subway Ride began in 2002 in New York as a stunt that organizers call “an international celebration of silliness”, and has spread to other cities. (Photo by Marco Ugarte/AP Photo)

A participant in his underwear takes part in the No Pants Subway Ride in New York subway on January 11, 2015 in New York. (Photo by Cem Ozdel/Anadolu Agency/Getty Images)

Jessica Faustin, of Queens, New York, participates in the annual No Pants Subway Ride, Sunday, January 11, 2015, in New York. (Photo by Kathy Willens/AP Photo)

A girl rides on a train as she takes part in the first edition of the No Pants Subway Ride in Bucharest, Romania, Sunday, January 11, 2015. (Photo by Vadim Ghirda/AP Photo)

A woman riding the subway with her son laughs after realizing she encountered the annual No Pants Subway Ride, Sunday, January 11, 2015, in New York. The No Pants Subway Ride began in 2002 in New York as a public prank and has since been celebrated by commuters around the world. (Photo by Kathy Willens/AP Photo)

Youngsters ride on a train as they take part in the first edition of the No Pants Subway Ride in Bucharest, Romania, Sunday, January 11, 2015. (Photo by Vadim Ghirda/AP Photo)

Women jump for a photograph as they take part in the first edition of the No Pants Subway Ride in Bucharest, Romania, Sunday, January 11, 2015. (Photo by Vadim Ghirda/AP Photo)