A man phones a mental hospital and asks the receptionist...
A man phones a mental hospital and asks the receptionist if there is anybody in room 27. She goes and checks, and comesback to the phone, telling him No, the room is empty. "Good," says the man. "That means I must have really escaped."

A judge, bored and frustrated by a lawyer's tedious argument
A judge, bored and frustrated by a lawyer's tedious arguments, had made numerous rulings to speed the trial along. The attorney had bristled at the judge's orders, and their tempers grew hot. Finally, frustrated with another repetition of arguments he had heard many times before, the judge pointed to his ear and said, "Counselor, you should be aware that at this point, what you are saying is just going in one ear and out the other."

"Your honor," replied the lawyer, "That goes without saying. What is there to prevent it?"