Gaffer Tape said:

Look, I'm not saying whether Mel Gibson is crazy or not. I honestly don't know enough about him to make that kind of a decision. But in a general sense you don't think violence is justifiable against someone who's attempting to rob you blind?

its a question of whether you are stopping a literal actual physical robbery in progress, or using violence in retaliation. If this woman had committed actual robbery(in the past tense), he could call the cops. You don't take the law into your own hands.

Bingowings said:

Even if the guy doesn't mean it the fact that he thinks that saying that black people are more likely to rape his wife because of her clothing is a good way to win an argument (even for a split second) says as much about his attitude to women in general as well as his attitude to people with different skin colours.

quoted for truth.