These are one of the funniest kind of jokes because the Medical profession is otherwise a serious profession.
A Lady patient to the Doctor inside his examination room: Doctor can you please call my husband inside, I am not feeling comfortable.

Doctor: Trust me lady, I am a Doctor and I am a Gentleman.

Lady patient: No Sir, that's not the issue. Your beautiful receptionist is alone outside and my husband is neither a doctor nor a gentleman...!!!!!!