BERLIN, GERMANY - DECEMBER 04: A guest shows tattooed sign 'unbreakable' at the Berlin Tattoo Convention at Tempelhof Airport on December 4, 2010 in Berlin, Germany. The Tattoo Convention takes place for the 20th time. The organizers expect over the three days over 15,000 visitors. There are artists from Japan, China, Taiwan, USA, Canada, Australia, New Zealand, Tahiti, Samoa, and from all European countries as guests, who come up with the latest technics, designs and color creations. (Photo by Carsten Koall/Getty Images)

Cats crowd the harbour on Aoshima Island in the Ehime prefecture in southern Japan February 25, 2015. An army of cats rules the remote island in southern Japan, curling up in abandoned houses or strutting about in a fishing village that is overrun with felines outnumbering humans six to one. Picture taken February 25, 2015. REUTERS/Thomas Peter