A natural and necessary part of growing up is for kids to become independent from the shackles of the home-front. This is often enough accomplished by feeling overly embarrassed by one's parents or by thinking that everything they say or do is unbelievably stupid. As a parent, you should not take this personally and realize that they are simply growing up. This is indeed hard at times and you wonder how much more patience will be required before you blow your stack completely. I mean really, what are they trying to prove? In the olden days I think that children were not allowed to be so impolite and sarcastic to the parents, but nowadays such behavior is considered normal. Too bad this effort at severing bonds has to take on such an unpleasant extreme, but it is part of the whole process. The ironic part of the whole matter is that as an adult you have already lived that phase more than once, and the wisdom you have acquired would be so useful to kids growing up nowadays when life is not easy. History has to repeat itself I guess.