Three surgeons discuss who makes the best patient to operate on. Says the first: "Electricians are the easiest to operate on, everything inside is colour-coded." The second surgeon says: "No, I think librarians are the easiest, since everything inside is in alphabetically order." The third surgeon shut them up when he said: "Lawyers are the easiest to operate on. There are no guts, no heart, no brain, no spine. Plus, the head and butt are interchangeable!"