patients
Three surgeons are having a coffee break (that's three surgeons not tree surgeons).
One says, "I'll tell you who are the best people to operate on - electricians! When you open then up you just follow the colour coded wires."
"You're wrong", says the second, "I like librarians because whenyou open them up all the organs are neatly placed in alphabetical
order."
"You're both wrong" chimes the third, "redshites definitely make the easiest patients! They've got no heart, no guts, no spine and
their heads and arses are interchangeable!!"