If you see people embarassing themselves, you tell them to shut up. When you get into a discussion, you can get tunnel-vision, and forget where you are. You start playing deviil's advocate, you start getting a bit looser with the old philosophy, start maybe lettting yourself lean in ways you wouldn't normally if you were talking in a real-life, public place...
And then suddenly you are defending the KKK and saying Hitler was a genius...
Then your "friend" looks over and says "Gah, shut up, people can hear you", and you realize you are talking really loud and the entire room is sitting, looking at you with their mouth agape.
Yeah, it was kind of like that...
I said shut up, yes, and I meant it in the most humane way. I think your leanings are pretty well known now, little_whip, and they probably lean a lot further than we know (if we try not to read between the lines). You may not care how people take stuff, but the conversation as a whole doesn't look the same from the outside as it does from the inside. It was getting creepy, so I said, "shut up". Take it how you like.