There is a scene in Animal Crackers where someone takes Harpo’s coat, leaving him in his boxers and nothing else. When it was running on Broadway, one day he forgot to put on the boxers underneath.
I have to add the following Lenny Bruce joke.
A business man is on an airplane, and notices that the man across the aisle, who is asleep, is unzipped and fully exposed. He calls the stewardess, and asks for some paper. He then writes the following note.
Dear sir,
I notice that you are fully exposed. I’m writing this note to allow you to correct the situation, without any embarrassment to either of us.
Sincerely,
John Smith.
PS. I love you!