The tinniest thing a doctor has ever seen on funny vibes

A guy goes to visit his doctor.Here is the conversation that ensued.Don't laugh said the patient.Of course I won't laugh," the doctor said.I'm a professional.In over twenty years I've never laughed at a patient.

Patient :Okay then he said, and proceeded to drop his trousers,revealing the tiniest 'whoo-ha' the doctor had ever seen.It couldn't have been bigger than the size of a small AAA battery,the doctor unable to control himself started giggling,and then fell laughing to the floor,ten minutes later he was able to struggle to his feet and regain his composure.

Doctor :I'm so sorry,he said,really I am.
I don't know what came over me.On my honour as a doctor and a gentleman,I promise it won't happen again.Now,what seems to be the problem?
Patient :It's swollen he replied.The doctor hearing this,he fainted.