Thanks everyone. There's no question that the person in front (who happened to be my DH) was in the right for stopping completely and that the person honking behind was just an impatient ****. But the fact that my DH felt the need to get out of his car and confront the honker bothers me - a lot. He feels that it was completely appropriate to do so, but I feel that it was aggressive and ridiculous behaviour on his behalf. I wanted to get some balanced views before telling which side of the story I was coming from, to see if I am the only one who would find his behaviour inappropriate.