Just avoid using them as much as possible, they will follow suit. If you people watch you will notice the trends. Parents that curse, have kids who drop F bombs non stop. Parents that smoke, have kids who will more likely smoke. Same with heaving drinking, gambling, spousal abuse. It's not a cut and dried concept, but it does hold true more often then not. We eventually do become our parents. It's up to us to find the things we didn't agree with our parents and work hard to change those so we don't continue the chain. I caught myself on a few things and have worked hard to be a better role model to my kids in those respects, but others I know I have failed.