Definitely use my business travel to masturbate. My first GF used to love to get me excited and have me cum in embarrassing ways and for some reason I still fantasize about this many years later. (Actually, as married sex life had dwindled, the fantasies get stronger). Sometimes I call a phone sex operator and one woman had me jerk off until I was right on the edge and had me flip over on the bed and hump the mattress until I came. Very embarrassing. I left a good tip.