"Doctor, there's a patient on line 1 that says he's invisible."
"Well, tell him I can't see him right now."

A couple years ago my therapist told me I had problems letting go of the past.

When an employment application asks who is to be notified in case of emergency, I always write, "A very good doctor".

Dentist: "You need a crown." Patient: "Finally someone who understands me"

When I told the doctor about my loss of memory, he made me pay in advance.

https://onelinefun.com/doctor/