A man spends his first day in prison talking to his cell mate. His cell mate gives him a few tips on surviving maximum security in his first weeks there, and then pauses to look outside the bars of the cell.
"I got an escape plan", says the man's cell mate.
"What is it?"
"Put this blanket over your head, and I'll tell you what to do when the guard comes back."
The man puts the blanket over his head, and his cell mate begins to rape him.