Poor girl. I always feel bad for people like that. First and foremost, you can get your point across w/o being a dick. It's a shame more people in this world don't realize that. I don't know why anybody would think it's okay to yell and scream at a teenage girl (or a grown man, for that matter) for something as stupid as an incorrect food order. I always assume people like that have an extremely miserable life and have to try to make other people feel bad so that they can feel better. As I've gotten older I've decided not to give those people that power over me.
I'm glad you brightened her day, Haus. 