A Scotsman living in London met a friend one day, who noticed his long face.
Jock: "What's the matter, Hamish?"
Hamish: "Well, I was on jury service, and ended up with three days in jail."
Jock: "For being on a jury? How did that happen?"
Hamish: The judge said "What is your name?" and I said "Hamish McTavish MacIntyre MacGregor."
Hamish: He said "Are you Scottish, by any chance?" and I said "Are you a comedian?"