Like some of the other guys posting to this thread, I am the boss at my place of work. I do not deliberately show-off a bulge in the office, but I recently learned that my staff knows that I have big dick, anyway. I will explain.
A couple of years ago, due to some corporate reorganizing, this fellow began reporting to me as one on my administrative assistants. I suspected that he was probably gay, and I did eventually run into him at one of the local gay bars. (Although I am not out at work, I dont really have hang-ups with people figuring me out, so I am perfectly cool with him knowing that I am gay, as long as he respects that I do not publicly acknowledge it at work.) A few weeks ago, I ran into him again at one of the bars. He was not drunk, but he was drinking and was feeling pretty loose, and I got an ear full. In the interest of brevity, I will not recount the entire conversation, but in a nut shell, he volunteered that (1) my staff either know or strongly suspect that I am gay, for all the usual reasons well over 30, not married, no reference to girlfriends. This neither surprises nor disturbs me after all, they are not stupid. (2) They all know that I am well-hung, not only from personal observation (he made specific reference to a pair of olive-colored slacks that I sometimes wear being particularly revealing, particularly when I am seated) but also because, some years ago, before I was the boss, a guy who used work with me saw me naked in a gym locker room while we were traveling on business together, and he passed along his observations to the some of the other people in the office. And, apparently, it spread and they still talk about it. So, I guess the moral of this story is that (1) people notice mens crotches even when the guy is not trying to be noticed, (2) people from all walks of life like to talk about big dicks, and they do, and (3) I need to re-think the olive colored pants. Mmm.