I know you will give me some perspective on this comment that was made and as to whether it should have annoyed me.
At work I have dealt with the complicated contract of one of our consultants. I will call him X. He works externally and I have met him twice. Probably will not have to ever meet him again although may bump into him at some point if he is visiting the office (I work for a relatively large very diverse - many nationalities - institution). He is probably late fifties maybe early sixties proper Englishman.
He came to the office last week and I did not need to meet him, but a couple of my colleagues did. I was chatting to one of these colleagues yesterday and cannot remember why we were talking about disabilities. That reminded him to tell me that he had coffee with X who had needed to use the bathroom. As in the coffee area there is only a disabled toilet or the ladies (the mens is not far away, but in a different area) my colleague suggested X use the disabled toilet. X was a bit concerned about doing so and my colleague said "well actually I don't think that I have ever seen a disabled person working here (he meant physically) so it will be fine. X then came out with "Don't you have to have a quota of gays and lesbians working here".
Oh how I laughed (NOT). I told my colleague in no uncertain terms what I thought of that remark. I am not by any means lacking in humour, but I was irritated by the comment. And while if I do meet X again I will be perfectly professional as always it has tainted my view of him and if such a comment is ever made in my company I would certainly challenge it.
And so as not to drip feed my son is gay, but I don't think that is why this comment annoyed me so much, but maybe Mumsnetters will tell me to get a grip which is fine.