Five surgeons are discussing the easiest types of people to operate on.
The first says: "I like to cut open accountants. Everything's numbered."
The second says: "Electricians. Everything's color-coded."
The third says: "Librarians. It's all in alphabetical order."
The fourth says: "Construction workers. If you finish up with a few parts left over, they understand."
The fifth one says: "You're all wrong; it's Congressmen. No guts, no balls, no heart, no brain, and no spine. And the a**hole and the head are interchangeable."