It's not particularly abusive, but he was being a prat. I think his daughter even said 'Stop it' as she knew herself her Dad was being an idiot. You don't drive and film and wind up someone you don't know when they have done nothing to you. It's hardly crime of the century, but nobody has any obligation to be 'nice' back to you when you are behaving like that. His daughter could see it, Carragher certainly thought so and the result was some spit. Boo hoo. Definitely worth a sacking.