I LOVE this thread
My old kitty was relatively well behaved but when it came to food, anything went!
One day eating a plate of fish and chips, I turned my back for no more than a second and when I turned back she was hot footing it out of the room with a full piece of haddock hanging from her mouth.
She had a favourite sofa and woah betide anyone who would dare to sit on it. She would sit giving them
the glare for ages and then jump up behind them and headbutt them right off!
The new boy is very naughty. The neighbours often find him under their beds, running riot round their houses and all sorts of trouble but his current very favourite (and highly dangerous) game is flinging himself on top of the kitchen cupboards and he has found a hole up there that enables him to crawl into the ovens extractor breast

(Lucky for him, we never have it switched on)
He also likes to use the tops of the doors as tightropes & swing bridges no matter how many times he winds up in a heap on the floor below.
Last week he played Tarzan across my wardrobe, swinging from the bottom of my clothes hung in there ...
I fear his naughtiest antic is yet to come ....