I'll start off. I was in a Pathfinder game, playing a catfolk rogue named Fergus the Glim. He was abandoned as an infant in a gnomish village, where he was raised under their... peculiar sensibilities. In adolescence, his curiosity saw him follow a merchant wagon all the way to a city, completely losing track of the way home. Now he lives in the city, with no common sense and a liberal sense of ownership.
So Fergus had this bucket. And on this bucket was a carved list of things he wanted to do before he died. Steal a noble's trousers, dance with a princess, come back from the dead, that sort of thing. He took this bucket everywhere, including to a dinner invitation at a noble's house. Well, he didn't make off with anyone's trousers, but he had another use for the bucket. He would offer it up to the noble family for anyone who wanted to donate alms to the poor. Quite a genuine gesture, as his personal current adventuring goal was to make a birthday feast for a slum boy he knew.
Well, the nobles weren't as magnanimous as they pretended to be. But next to Fergus was sat the family's youngest child, who carried the family cat in his lap. At some point during the evening, the cat leapt into the bucket for a spot to rest, as cats are wont to do. This I took note of, and the DM swiftly forgot. So when it was time to leave, and I made special mention of retrieving my bucket, no word was said about the sleeping cat. Not all the way home, to the other side of the city.
I still remember the shock and horror when I asked the DM how much I could get for selling such a fine and pristine cat to a new home. "You stole their cat?!" she exclaimed. "Nay I did not," I replied, "The cat clearly donated herself!"