I never criticize a guy who is overweight and trying to do something about it because when I joined my Y, I was 40 pounds heavier and looked like shit. I couldn't even get one of the towels the Y provides around my waist because I was a 37" waist. Now that I'm a 32" waist I can easily get it around my waist and have it stay there without popping off when I move. It was a tough road, and it took years to get all of that weight off. I also went from a L to S underwear, and an XL to M shirt.
However, that being said, I detest these disgustingly overweight guys that don't exercise and hang out nude in the locker room for hours on end. I don't want to be exposed to their revolting body for a prolonged period of time. It seems that some of them go out of their way to be naked in front of me as much as possible. I don't know why they think anyone would want to see them naked. There have been quite a few guys at my Y with bellies hanging down to their knees that literally needed to lose at least 100 pounds. When I was 40 pounds overweight (anorexic compared to these guys), I was ashamed of my body even though I was trying hard to lose it through a strict diet and regular intense exercise. It's like these guys don't care at all. There was one guy I nicknamed "Shamu" because he was 200 pounds overweight, and would lounge naked in the hot tub rolling around for at least an hour ensuring that anyone else who wanted to use it wouldn't do so with him in there. He was so huge that when he was in the shower and took the head next to yours, his body would invade part of your personal space. I used to take the shower head the furthest away from him in the open shower room, and I would still get splashed by water bouncing off his grotesquely obese body making me feel that I had to wash all over again. I couldn't just wait for him to finish up because he would literally be in there for hours. Who has that kind of time to wait? I NEVER saw this guy on the gym floor. He would moan to anyone that would listen about how awful he felt, and how his doctor ordered him to lose weight. Obviously he was doing nothing to make this happen. I haven't seen him in years now. I think he may have died because he was that grossly overweight.
Another grossly overweight guy used to stare at me with his jaw dropped whenever I entered the locker room which completely unnerved me. One time he actually moved across the locker room to put on his shoes on the bench right behind the locker I had just selected! I guess he wanted a close up of me changing. I was so pissed off that I picked up my bag and moved to other end of the locker room to get changed swearing under my breath to let him know that I didn't appreciate such blatant perving. This was another guy that needed to lose at least 200 pounds, but would swim for only 5 minutes before using the locker room for hours on end. I still see him once in awhile, but avoid him as much as possible. Honestly, when guys look this gross and are standing right in front of me naked, I don't even look lower than their neck. Why would they think that anyone would want to check them out looking like that? I would like to point out that these guys always target guys like me that are in good physical shape. They never target guys that look like them because they are just as disgusted by obese guys as us fit guys are. It begs the question, why do they think we want to see them naked when they are just as grossed out by guys that look like them as we are? To fit guys that have busted their butts to get in shape (like I did), we are even more repulsed by seeing obese bodies than they are!