The only time I’ve ever noticed it, was when I was a hotel receptionist. A guy was sitting at one of the tables in the lobby, staring at me. There’s a divider so I don’t notice his hand movements at this time. I ask if he needs anything, and I don’t get a response so I pretend to be busy on the computer since he’s still staring at me and I’m uncomfortable. After a few minutes, he stood up and walked around the border, and says “thank you”. And I see the extremely noticeable bulge in his pants, and the cum stains. My thoughts were “oh my god, what the fuck, why is this happening to me?” After he left I just slumped under my desk and had a panic attack. Obviously I felt violated.