Has your young child ever lectured you on why you shouldn't say bad words?

While I don't curse a lot and I really try not to around my kids at all, I've had a bit of an aggravating afternoon and a couple not-so-nice words came out of my mouth. Each time, my 4 year old son reminded me that those were not nice words to say. A minute ago I said "dammit" again. Oops. He went into like a five minute dissertation on why I shouldn't be using those bad words and how it was very important to talk kindly. LOL. Nothing like being reprimanded by a pre-schooler. :-P