bocajhoan and willow - I have the same problem. My little 3 yr old dd is also saying the dreaded "f" word. Luckily she is not saying it all the time. I have told her not to say the "f" word (that is exactly how I put it) So if she hears something now with "f" in it she races and tells me one of the other kids have said the "f" word. However she still will sing "f***,f***. Now when I know that she has said it - I let her know that I am not happy. It has been a few days since I have heard it, so I am hoping that it is the end of it for me. If she happens to say it again, I rather like marydeans response.