Medical Misfits?

Riddle: A nurse was speaking with a young doctor just prior to their entering the room where the surgery was to take place. "You know," said the nurse, "I am surprised you are going to attempt surgery on this patient again, since you have failed in all of your previous attempts. You are lucky this patient is unable to make any complaints concerning your failed surgical attempts, and sue you for malpractice! So far, you have botched his knee, ankle, heart, and rib surgeries, and now you are going to try to remove insects from this man's stomach. What's next, brain surgery?" "After today's operation, I believe I will do just that!," replied the doctor in a defiant tone, "and this time there will be no nose bleed, or a red nose of any kind during the surgery." "That'll be the day," replied the nurse. "I will be right next to you during the operation, so when you mess up, I'll have a good laugh!" What kind of twisted, warped, medical professionals are these two? Why haven't both of them been permanently banned from practicing medicine? Just what exactly is going on here?