Seat belt

"Airline hostesses show you how to use a seat belt in case you haven’t been in a car since 1956."

This person is trying to give advice to the person who even doesn't know the meaning of A. You can say that a person who can not afford to have fan at home, is getting tips on how to operate air-condition at home. So when someone is doing such a silly thing, you can instantly punch this joke.

Freedom

Men want the same thing from their underwear that they want from women: a little bit of support, and a little bit of freedom.