If you saw a guy with his zipper undone...would you tell him?

I guess it depends on who it is. I would defently tell my husband. And my kids if they had there zipper down. Im not sure I would tell a stranger.

Yes, and I have. I try to be very discrete. I work in a very central location open to many and sometimes people just don't know what is going on. I had a lady walk past me with her school girl skirt tucked partly into her fishnets. I don't know how she didn't feel the draft and didn't notice the snickers of others as she wakled by. She was very embarassed but happy that i told her that she didn't continue to walk around like that. I would hope someone would do it for me, zipper down, food in my teeth, booger in my nose, hand me a breath mint, I'll get over it!

Sometimes I do when it happens to be one whom I know, but I don't tell someone I don't know. Because I think it might be impolite to tell him that. I just don't want to make him feel embarassed for that.
Speaking of the zipper undone, I have had such experiences for some times. One time I was discovered by my students and they were just whispering there at their desks. Later one of my boys made a sign to me to walk over to him and he laughingly told me that, making me have a good laugh. Then I immediately went out of the classroom to zip up. All of them started laughing when they saw me go out.
Coming back again, I said sorry to them and they said they could understand that. The students told me that the same thing happened to another teacher making me laugh as well. You see, I was not the only one who forgot to zip up. But ever since then, I have paid more attention to my zip each time before I go into the classroom to make sure the little man is locked safely there. hahahaha

If that guy is someone I know, I will tell him discreetly. I'm not sure whether if I'll tell him if he is a stranger.

if i know the person i would tell him but if not better to have his companion tell him that.

I will tell him.

I would feel comfortable telling a guy his zipper is undone.

Yes, I would tell him, but I'll do it in such a way that nobody else would realize it but him -- be as discreet as much as possible. I have done this so many times in the past.

I think it would depend on the situation. If it was a friend or a buddy of mine then I probably would but if it was just a guy on the street I wouldn't. I don't like to embarrass anyone.