Lawyers have no heart

Then there was this medical convention where three surgeons met during a coffee break. They were chatting about different operations on different kind of people.

First surgeon: “I prefer Chinese. They have what it takes and their bodies are perfect.”

Second surgeon: “I like Vietnamese. They are so small and delicate that you have to have steady hands, else the incision is big. It's a challenge to operate on them.”

Third surgeon: “You are both novices. You don't know about lawyers. They are my favorite because when you open them, they have no heart and they don't have a spine. Also their heads and butts can be swapped.”