Inky had been at the New Zealand aquarium since 2014 after being taken in by a fisherman who found him at sea. Inky had been getting used to his new environment, but the staff quickly figured out that he had to be kept amused or he would get bored. Then one night in 2016 Inky, about the size of a basketball, decided he'd had enough. He slithered eight feet across the floor and down a drainpipe more than 160 feet long to his home in the sea.