Do you teach your children to beware of abuse by a Significant Other?

A recent question was posted by sophie123 asking why women stay in abusive relationships. Without getting to my full answer, what I do think is that the process is very insidious. Even women who did not witness abuse growing up, and never thought they would put up with physical abuse, can wind up seemingly stuck in a bad situation. I think seeing the signs and getting out before you are very emotionally or financially tied to the person is so important. Important for more than one reason. As the relationship gets more established not only is it harder for the woman to leave, but the man also becomes more dependent on the relationship and it can threaten a woman’s life.

So, do you specifically warn your children about this? The signs, how it works psychologically? Or, do you assume they know hitting is wrong, or wait for a bad situation to actually happen before you address the topic?