5 surgeons are taking a coffee break and conversing about their patients:
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 butts are interchangeable."
5th surgeon says, "I like engineers ... they always understand when you have a few parts left over at the end."