As it’s an emergency, and the highway is completely empty at this time of night, he’s going a little over the speed limit. Suddenly, he sees blue lights fire up behind him, and he’s pulled over.
The cop approaches the car and says “Do you know how fast you were going?”
“About five miles an hour over,” says the doctor. “Sorry. I’m a doctor, and one of my patients has taken a turn for the worse, so I’m rushing to the hospital.”
“The rules are the rules,” replies the cop. “I’ve gotta give you a ticket.” The cop starts writing it out and, as he does, asks “What kind of doctor are you, anyway?”
“I’m an asshole stretcher,” says the doctor. “One of the best, actually.”