An elderly women, Ethel, calls her husband on the cell phone.
“Harry, where are you?”
Her husbands answers “I am on the highway driving home from the doctor.”
She says, “Oy, Harry , be careful, I just heard that some meshugganah is driving the wrong way in traffic. “
The husband answers, “What do you mean one meshuggenah, I see hundreds driving the wrong way.”
There is a moral in there somewhere, also.