Ignore it?

So here's a 'what do you do if' question, with a couple of slants to it. What happened to me....I was in #bdsm-sfbay last night. A woman with who I had a falling out with a year ago, started talking to me. Since it's not really my nature to just ignore someone when they are talking directly to me, I replied...and we had a polite little chat. Intermingled with our chat, and the general chatter of the room....her submissive partner kept insulting me & making cracks about me. I just ignored it. As far as I know, the submissive does not actually know me....and any opinion they might have of me, has of course been influenced & shaped by the opinion of their partner....and whatever denegrating comments/stories their partner has related about me. While these comments were being made, the partner would either laugh or just ignore the comments. So....the point of all this....was this a typical thing? If your partner (whether dom or sub I guess) was being insulting to other people, would you just ignore it, or would you gently ask them to stop &/or suggest that they express their opinions in a more private setting? Dom-types, would you say something to your submissive-type partner in this situation, or would you let it go? WOuld you apologize to the person who was being insulted? Sub-types, how would you feel if you were 'corrected' by your dom-type partner? Would you apologize? Would you escalate the situation? Any-types, is it a typical thing to just start insulting someone you haven't even met, and you just know of based on the stories of someone else? Would you think that maybe the other person's opinion was colored by the bad experience & try to find out if the other person might actually be a decent human after all?