I don't really pay attention to people doing that.

I bet no, though. My T is female and my pdoc is male, but I've been in some weird situations (if I panic I get very warm, and if I'm too warm I panic more quickly, so sometimes if a session is very intense I'll take off my sweater if I have a T-shirt underneath. A while ago I hadn't noticed my T-shirt was rather shine-through though, so you could see my bra) and at most he'll frown in concern. I mean, if I do things like that I'm either very upset, very triggered (OH NO MY CLOTHES ARE RESTRAINING ME!! GET THEM OFF!) or very agitated.
Sometimes if I'm very upset or agitated or triggered or something I'll do weird things. Once I was inpatient and very agitated, shortly after bedtime. Came down, sat with the two nurses in the living room, and eventually I 'needed' my clothes off and managed to get them off. Male nurse immediately turned around and waited just around the wall (within earshot, out of eyesight) while the female nurse sat with me.

Pdoc is very great at not paying attention to the irrelevant things, though, so I really doubt he'd stare at someone's body with anything but a professional interest. (Such as: if someone looks fat, he might notice and ask them to step on the scale)
There's also the fact that he treats youths - the T organization treats until 23, but they don't take patients over 18. So that would be seriously creepy and icky if he were to do that.