Fred went to the doctor and said, "Doctor, I've got a problem, but if you're going to help me with it, first you've got to promise not to laugh."
"Of course I won't laugh," the doctor said. "I'm a professional. In over twenty years I've never laughed at a patient."
"Okay then," Fred said, and proceeded to drop his trousers, revealing the tiniest penis the doctor had ever seen. It couldn't have been any bigger than a small peanut.
Unable to control himself, the doctor started giggling, then fell laughing to the floor. Ten minutes later he was able to struggle to his feet and regain his composure.
"I'm so sorry," said the doctor, "I really am ... I don't know what came over me. On my honor as a physician and a gentleman, I promise it won't happen again. Now what seems to be the problem?"
"It's swollen," Fred replied.
