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#2.
At the New England Aquarium in Boston there is an octopus named Truman.
Truman's keepers liked to assert their superiority by forcing their ward to perform a series of pointless tricks before allowing him to eat his dinner. All of which is condoned in the name of the creature's "enrichment," which as far as we can see means "No food until you entertain me, bitch."
This wouldn't be the first time that octopi have proven their intelligence to mankind. In March 2009, Truman's keepers decided the enrichment activity of choice was going to be lock picking, and Truman decided he'd had just about enough.
A locked acrylic box containing live crabs was placed inside a larger box--also locked--and the whole device was lowered into the tank. Expecting the octopus to resist playing along until the aquarium was closed (we assume this was Truman's usual behavior in an attempt to maintain some dignity) the keepers went on their merry way doing whatever it is that octopus caregivers do (we assume something Hentai related).
Acting out of character on this occasion, Truman paid immediate attention to the food-puzzle he was faced with. He began to patrol the box to assess how exactly he could get his tentacles on the prize within. His reconnaissance was rewarded as the intrepid creature discovered a unexpected weakness that was ripe for exploitation.
Three years earlier, the outer box had been used in a similar test on a different octopus. On that occasion, the box wound up getting broken, and a small hole was left near the lid. Truman, steadfastly refusing to work the latch that was his "puzzle" for the evening, commenced his own unique solution of pouring his body through the two-inch hole in the outer box.
Soon this 15-inch box contained one seven-foot octopus and two very surprised crabs.
He never got to the crabs--remember they were inside the smaller interior box--but we like to think he had a larger plan, which was to protest in the name of mistreated, puzzle-solving octopi everywhere. "You like fucking with locks for fun? Well you better get to it if you want your PRIZED AQUARIUM OCTOPUS BACK, assholes!"