What jokes have been made in history because of dialects?

Turn a joke. I've been pointing at this joke all week.

My classmates are medical students, the legend of their hospital anesthesiology department ~

An anesthesiologist with a strong accent once gave an uncle epidural anesthesia. The doctor asked him, "Are your feet numb?"

Grandpa: ...

The anesthesiologist thought that he might speak in a low voice and continued to ask, "Are your feet numb?"

Grandpa continued not to talk and stared at him.

The anesthesiologist couldn't stand it anymore and raised his voice: "Talk, are your feet numb?"

Grandpa: "Mom."