In my art class today it was 'Critique Day', when everyone shows off their finished works and speaks about them. One of my classmates, a rather cocky abstract artist, was up with a large picture he had painted of a human heart.

He was going on about it and dancing around the room, still playing with the wet paint when I asked...

"Where's your aorta?" (I'm studying to be an RN. I ought to know when something's wrong.)

He seriously froze for a moment and went uhhhh...before someone else distracted him.

So here's the question: Have you ever shown up anyone like that?