I would not wear one either. I do wear panties and a co-worker saw the waist band about two weeks ago. He actually works for me in my department. He did not say anything to anyone as far as I know. I am a designer in the plastic mold industry. Very macho environment. So if he did, I would have heard by now. Ever since that day, he has been more attentive. He will roll over to my desk in his chair whenever he gets a chance. I am sure he is just trying to see something. I did notice he was wearing black nylon one day. I do not know if they were male or female underwear. I think maybe female. I wear panties every day (don't have any male anymore) and I have deliberately let the lace show. He has noticed but not said anything. Bottom line, if you don't want poeple you work with to know, don't wear anything femme. Because sooner or later, they will notice.