Sex in cars
I remember lots of fogged windows.
A policeman once pulled me and my gay male friend over because the car was swerving. My friend said he got asked, "Is that girl making you swerve?" And he let him think that was the case. But really, we were singing and dancing, clapping each other's hands, to some song that went 'those windshield washers, clapping out of tempo, keeping perfect time on the radio'.