I see guys blowing their noses and spitting in the open showers where I work out. I hate it! I always do wear flip-flops. I've never seen a guy piss in the shower. One time I did cum with no one around; don't know why. Never did before or since...guess it just wanted out! I've shaved several times. I don't see a problem with that. My advice is always wear flip-flops in the shower, the locker room, to the the pool, etc. But that nose blowing, spitting stuff needs to stop! Someone may be catching their snot, and putting it back into the soft soap container in the shower for some poor soul to use, thinking it's SOAP. Total grossness!