Concealment memes

"I always like walking in the rain, so no one can see me crying."

- Charlie Chaplin

Why don't you ever see hippos hiding in trees? Because they are really good at it.

So, a guy is evading the draft. The cops bang on his door, and he runs out the back, through an alleyway onto a road. He finds a nun and asks if he can hide under her blouse. She complies, and the cops walk by and don't see them. The man comes back up from under the nun's blouse and says, "Hey man, you've got a pair of balls!" The nun says, "I didn't wanna be drafted either..."