Edging in the public gym suana

I cant tell you what why this happens but I get so horny from my workouts. Sometimes intentionally but it also just happens sometimes. After my lifts I like to spend time in the sauna. I feel relaxed after a few minutes. However most days in the sauana I start to get hard and feel my bulge pressing out against my shorts. I cant but sneakily rub my shaft and head through my pants. Knowing any moment someone could walk in. Sometimes ill get bold and do it while someone else is on the other side