In car playing
I started a night new job about 5 years ago and discovered on day that my half hour drive home from work is just about the enough time to masturbate and relieve the days stress.
I started doing it one day out of sheer boredom and now I can’t stop. On one occasion I even let the guy in the van next to me watch me do it. I just stared straight ahead and concentrated on what I was doing.