Have you ever been outed? If so, where, when, who and how? How did you react to it?

We were outed on the sidelines of a youth soccer game. A bitter and divorced woman who somehow found out we were in the lifestyle decided that she wanted to gossip and although I don't remember exactly what led up to it, stated quite loudly (all the parents heard her) that "everyone knows you two are swingers". Needless to say my wife was quite caught off guard and had a deer in the headlights look. She couldn't speak due to being so surprised. I'm a quick thinker and talker. I immediately called her out as talking bullshit and asked where she gets off talking about other people like that. It died right there, or at least we thought. Since that day several years ago, although we've never been directly asked, we've had multiple people that were there allude that they know we are in the lifestyle...usually by saying that they know someone who swings but are speaking in generalities. We always blow it off and say to each thier own.