From medical practice

A farmer comes to the doctor to get vaccinated. The doctor, already busy vaccinating several women, tells him to wait in the next room and just undress for the time being. The farmer goes out and after a quarter of an hour, to the horror of the doctor, comes in again stripped down to his shirt:
“If you don’t step outside, you insolent fellow,” the doctor yells, “get dressed again immediately!”
“Yes, what do I know, Doctor,” says the farmer, “where one is vaccinated.”
(Fliegende Blätter, Munich, 1871)

German smallpox cartoon