Operating on Engineers

Five surgeons were taking a coffee break and discussing their work. The first surgeon said, "I think accountants are the easiest to operate on. You open them up and everything inside is numbered." The second surgen said, "Nah, librarians are the easiest to operate on. You open them up and everything inside is in alphabetical order." The third surgeon responded, "Try electricians! You open them up and everything inside is color-coded!" The fourth doctor interceded, "I prefer lawyers. They're heartless spineless, gutless, and their heads and their ass are interchangeable." To which the fifth surgeon, who had been quietly listening to the conversation, replied, "I like engineers . They always understand when you have a few parts left over at the end."