3 Doctors at a convention talking shop, one says:
 "I love doing surgery on Artists, they are so colorful:
  red hearts, pink stomachs, green spleens",
the next doctor says 
 "Me I love doing surgery on accountants, open them up
  and all their parts are numbered, makes it very easy",
the third doctor says:
 "I love doing surgery on Lawyers, they have no heart, they have no
  guts and the head and the ass are interchangeable"
;-)