Re: My Boss is Gay
I agree that you should stick to your complaint specifically. But it may not hurt to mention a couple of names of people who may have their own negative experiences to relate. Tell them that while you are supplying those names, you do not want to get involved but you feel that those named people may (or may not) have an issue to bring up with the HR department. This way, they know that you will back up your colleagues who have been victims but at the same time, it will not be you who relates their issues - IF they choose to relate them, they have an ally in you though.
As mentioned above, the HR department really does have as its credo to make things work in a Human Relations type of way...its their job to get rid of or re-train those who get in the way of company succcess by making their workers uncomfortable and/or unproductive in any way. So again, you will be helpful to them if you supply some names. If you choose not to supply names, thats ok too because now they have this guy in their radar and will speak to anyone he deals with.