No, I'm pretty sure it was from this board, or maybe even the blog. But the story is right - a poster and her friend were eating out, when someone (I don't think it was the friend, I think it was someone else at another table) pulled a large snake out and started showing it around. The thread's unanimous consensus was that that was horribly rude. It was significant because it's rare that an *entire* thread agrees on something, with no dissenting opinions.
There's been a few other topics like that, but I can't remember what they are!