Malcolm, I think that the approach that Thurg is suggesting is a good one.

Whether you take this approach or some other one, Malcolm, I hope that justice is served in this situation. It certainly does sound like the person who took offense to your singing went waaaay too far in his reaction to that singing.

In retrospect, I should have prefaced my previous remarks on this thread with those comments. I'm sorry that I didn't do so, and I'm sorry that you are sufferring because of that person's reaction to what in no way appears to be an act of mal-intention on your part.