Poor Kitty

My wife just showed me her new textbook for her next class in Quantum Mechanics. She said, "Look, it's got a kitty on it!" and it had a cartoon drawing of a cat on the cover. She turned it over on the other side and said, "And on this side he's sleeping."

I asked what a cat has to do with Quantum Mechanics, and immediately after asking I remembered Schrödinger's thought experiment. This is a famous thought experiment concerning quantum mechanics in which a cat could simultaneously be considered both dead and alive (it's a long story). Anyway, realizing the connection to the experiment, I pointed out that the cat on the back must be dead and not sleeping.

Never tell your wife a picture of an immobile cat is dead and not sleeping.