A different kind of doctor

A man was speeding down the local highway, far over the limit as he crossed a bridge. The cop that was hidden to the side raced after him and immediately pulled him over. He walks up to the car window and begins to question the man.

"Where are you headed in such a hurry?" the cop asks

"I'm extremely late for an appointment, my patient is in dire need of help!" the man replies

"Oh, so you're a doctor eh? What kind of doctor?"

"Well you see officer, I'm a rectum stretcher."

The cop blinks, skeptical, and repeats back "A rectum stretcher?"

"Yes sir"

"And what exactly do you do?"

"Well exactly what my name implies sir. You see, some people have really stressful lives, and having your rectum stretched can relieve that like nothing else can."

The cop asks "So. How do you uhh, ya know, do it?"

"Well it's simple really, you start with one finger" he begins motioning his index finger forward and back "and then you add another, and another, till eventually you're using your whole fist. Then you start again with your other hand, till eventually you're putting both fists in and out of their rectum like so. You can actually stretch their rectum to as much as 6 feet!"

The cop stands mouth agape before he angrily asks "What do you do with a 6 foot asshole?!?"

"Give it a radar gun and park it near a bridge"