The Impossible Task
Senior nurse entered a patient's room and asked him to remove his clothing and put on a gown to be checked by the doctor.

"In...in front of you?" He mumbles, shyly.
The nurse says: "Don't worry, I've seen the naked human body before. You've got nothing I haven't seen a thousand times." The man said, "Not one like mine. You would die laughing at my naked body."
 
Of course I won't laugh!" said the Nurse to the patient, "I'm a professional. In over twenty years I've never laughed at a patient."
 
"Okay then," said the patient, and he proceeded to drop his trousers, revealing a huge male body with the smallest adult male organ the nurse had ever seen in her life. In length and width it was almost identical to a AAA battery.
The nurse, a professional, managed to keep herself from laughing, but did smile a bit. Feeling bad, she asked him about his symptoms.
"Well," he said, "there are two problems. One is that it won't stop getting hard."
Unable to control herself, the Nurse tried to stop a giggle, but it just came out. Immediately feeling bad that she had laughed at the man's private part, she composed herself as well as she could. 
"I am so sorry," she said, "I  don't know what came over me. On my honor as a Nurse and a lady, I promise that it won't happen again. Now, tell me, what seems to be  the problem?"
"It's swollen," Bob replied.
The Nurse just ran out of the room.