I’ve done that many times and no one was “offended” or “shocked” or “repulsed” or “angry to the point of murder.” I jerked off in a public gym session and so what. People stopped working out to watch me work the hog. They looked at my face, then the hog, put the weights down, turned off the treadmill, and gazed at the action being performed before their eyes. It wasn’t anything special, just a normal hog sesh. I’m inclined to believe that it was my technique that had them awed but not dismayed. I like to use a slight twist in conjunction with the steady up and down. You don’t want to get anything phallic-shaped near me because I have a compulsion-to-stroke that I’m working on with my therapist. Back to the point, there’s nothing wrong with bopping the baloney in a public gym session. Those look like two lovely gentlemen.