At The Patent Office
A man enters the Patent Office to register his inventions.
The female clerk pulls out a form, takes down his personal information, and then asks, "What is the invention?"
"A folding bottle. I call it a 'fottle'," he replies.
The clerk snickers: "That is absolutely silly and the name is even crude."
The man is so offended that he walks out without even telling her about his folding bucket!