This man watched me on the D train from Herald Square to Grand Street. Then going over the bridge I noticed him, one eye closed, one looking at me, rubbing himself. I looked down and noticed his penis sticking our of his shorts. I shouted NO, then he readjusted and played asleep until I got off at my stop. I thought about telling him he was gross, rude, inappropriate, wrong, tell the train what he did-but after he’d so quickly readjusted himself I worried that no one would recognize what happened/validate me.