He ran out of patients.
He doesn't have a job.
He wanted stable employment
They quit smoking.
He couldn't handle his boos.
One, but you can be sure a whole Reddit community will appear to expand the joke, make it funnier and eventually run it into the ground.
You will get tired.
Because he didn't feel well.
Because it keeps the Doctor away!
Because they are always telling them "You're in trouble"
the doctor asked. "Lest's see" said the patient "Mom had the litter in '41
