I've seen people who were obviously disabled or elderly wearing them, but don't really look beyond the initial glance. One time, though, last spring, I saw a cuuuute man about my age that was definitely wearing them.
It was at school. I've gone back to college after dropping out nearly 15 years ago. He had a well-trimmed beard, and that rusty-auburn hair that people sometimes get when they outgrow being an out and out redhead. He had just a couple of freckles, was slightly taller than me-though not by much-and blue gray colored eyes. We made eye contact. I blushed like an idiot, and went down a hall I didn't need to go down just to avoid saying something stupid. I know if I had tried to talk to him, I would have asked if he was single, or otherwise (politely!) hit on him.
Nobody wants that. It would be creepy, since I know I wouldn't have looked twice at him if he wasn't diapered, no matter how nice looking he was. I am terrified of the risk of accidentally fetishizing somebody's disability like that, and didn't want anybody to feel bad because of it. Not the same thing, but I've had people come on to me just because of my ethnicity, and as much as a bummer as that can be, I don't want to inflict a similar type of hurt on somebody else.
He sure was cute, though. He looked to weigh around 150-160 lbs; small enough to sit in my lap comfortably, but not so little that I'd be scared to break him. He appeared to be in fairly good shape, too. He was wearing shorts and a fitted t-shirt, and you could tell from the musculature in his chest and legs that he exercised regularly. I sometimes catch myself thinking about running into him again, and maybe being a little less awkward.