One of them is a doctor, and the other one a deaf man.
Every day, the doctor gives the girl a gorgeous rose. “a beautiful flower, for a beautiful girl,” he says.
The deaf man gives the girl a large red apple every day, but never says anything.
One day, when the deaf man gives the girl his daily apple, the girl asks “why do you give me an apple every day?”
To which the deaf man responds: “WHAT??”
The girl is pretty stupid. Even children know an apple a day keeps a doctor away.