Joke: “ A horse walks into a bar. The bartender says “You’re in here a lot. Are you an alcoholic?”
The horse ponders for a moment, responds “I don’t think I am”, and POOF, he disappears!
At this point, philosophy students start to snicker, as they are familiar with Descartes’ postulate, “I think, therefore I am.”
But if I had mentioned that earlier, I would have put Descartes before the horse. ”