As I'm a closeted sub myself I can relate to your situation.

The way I see it, is as I would do if my "vanilla bedroom accounts" were asked. I'm not Madonna, my private life is my own. Nobody has to (or really cares) about what I do behind closed doors and the details of my relationship are my own. By definition, I'm a private person and as I work in a very conservative and strict vanilla environment (my Master too) the tendency for discretion is more pronounced.

If you feel a "punk rock moment" coming your way, I'd try to avoid it. Making a personal statement will, more often than not, harm your relationship with your family (mine are ALL catholic) or get interrogated in a not too comfortable way by your friends. My "weirdness" will get instant judgment and I'm not up for justifying my choices, likes or dislikes.

Unfortunately, we still live in a prejudiced world and the price for overstepping certain limits is frequently too high compared to the actual outcome. What I do is look inside me and gather strength from the peace and fulfillment that I find there since I started down this road.

my 2 cents, good luck!!