And people wonder why children these days don't follow the rules.
I am amazed at the amount of parents on this thread that have posted that the rules don't apply to them; that they wouldn't get a baby sitter, it is a public building so forget the rules; I "accidentally" brought my kid, I don't care if they said "no kids", I make no apologies, I am bringing my kid anyway, yada, yada, yada.
It is no wonder the teacher was irritated, although she should not have been rude.
I just wonder how rude the teacher really was, or was the OP just feeling guilty for "accidentally" bringing her kid and then projecting that guilt and seeing stuff that wasn't there.
For the OP, I wouldn't worry about it. If it was truly an accident, then that was what it was. No need to feel bad about it.
It is the parents that puposely bring their kids, even when they know they are not invited, that are making me shake my head here. Find a neighbor, share a sitter, it can be done.