This man goes along to the Patent Office with some of his new designs.
He says to the clerk, "I'd like to register my new invention. It's a folding bottle."
"OK," says the clerk. "What do you call it?"
"A fottle, replies the inventor."
"A fottle? That's a stupid! Can't you think of something else?"
"I can think about it. I've got something else though. It's a folding carton."