When I was a teenager, my family had a cat who was the sweetest thing in the world, but dumb as a box of rocks.
The best incident has to do with a habit he had. The layout of my parents’ house is important to this, so here’s a bit of background. Because the house is built to take advantage of the ocean view, all of the main living areas are upstairs. You come up the stairs and you’re in the kitchen, with a sliding glass door leading out to a deck that runs the full width of the house directly in front of you. To the left is the family room, which also has a sliding door out to the deck. The screens for both of these doors are on the inside.
Anyway, this cat had a habit of once or twice a day, he’d come tearing up the stairs, launch himself at the kitchen screen door, hang there briefly and jump down. He’d then run over to the family room, launch himself at the screen door in there, again hang there briefly and jump down, then it would all be over and he’d probably go straight to sleep. So one day, he went through this little ritual, the first screen door went as expected, and he ran over into the family room. Unfortunately for him, however, for some reason the second screen door had been slid over to one side and wasn’t in its normal position. The result: the cat throws himself at the spot where it should be, and goes THUNK into a glass door. The poor little critter sat there looking stunned for a moment, then proceeded to start washing, as if to say “I meant to do that”.