Five surgeons are taking a coffee break:
1st surgeon: "Accountaints are the best to operate on because when you open them up, everything inside is numbered." 2nd surgeon: "Nah, librarians are the best. Everything inside them is in alphabetical order." 3rd surgeon: "Try electricians! Everything inside THEM is color coded." 4th surgeon: "I prefer lawyers. They're heartless, spineless, gutless and their heads and their butts are interchangeable." 5th surgeon who has been quitely listening to the conversation: "I like Pinball Machine restorers... they always understand when you have a few parts left over at the end."
I found this on an automobile forum and modified it for pinball.