In my 20's at the time.
There were times back in the'60's when I found myself driving long distances accross upper New York State. In my 20's, erections sometimes just developed for no apparent reason. Perhaps I had a passing erotic thought or rubbed my pants at just the right way. Who knows. However, I would end up with a throbbing, sensitive hard on in need of relief. Naturally, I would rub it through my pants until exqusite pain and pleasure merged into one roaring, overwhelming mental and physical necessity! What to do? Good grief, should I come in my pants or pull it out to climax? Either way, I could zone out and run off the road. Not a smart idea at 65 miles per hour. So being of sound mind and body and hoping to keep it that way, I pulled off the road at a rest area or wide shoulder to 'pull off', as the Brits call it. In those days we carried a cloth hanky to blow the nose with. Mine ended up wet and gooy when at last I brought myself to orgasmic relief, safely parked away from passing vehicles. The message here, of course, is don't jerk and drive. If you close your eyes at the critical moments of orgasm, these may be your last critical moments of life! Don't drink and drive, either!