I used to work with a guy who had MAJOR BO. Sorry to be blunt, but he did, and BAD. And of course that was the same guy who didn't understand personal space boundaries and would get WAY too close while discussing something. I don't know if it still exists, but one of our co-workers told us about a website that would anonymously inform someone of your complaint. You'd submit the info, and they would send him a message: "Dear Brenden, your co workers don't want to embarrass you, but they feel you should know that you have a body odor issue and hope you will take care of it..." that type of thing. I know they talked about doing it, but I don't remember now if they did it, this was years ago.