Five surgeons taking a coffee break
1st surgeon says: Accountants are the best to operate on because when you open them up, everything inside is numbered.
2nd surgeon says: Nah, librarians are the best. Everything inside them is in alphabetical order.
3rd surgeon says: Try electricians, man! Everything inside THEM is color coded.
4th surgeon says: I prefer lawyers. They're heartless, spineless, gutless and their heads and their butts are interchangeable.
To which the 5th surgeon, who has been quietly listening to the conversation, says: I like British car restorers... they always understand when you have a few parts left over at the end.