Say excuse me!

I was in the dressing room at a department store this weekend when a lady called up her Boyfriend/Husband to ask to go somewhere. When he said no she started to cuss him out, I think every other word was F88k babe..It went on for like a minute. After all that her son burps and she says "that's gross, say excuse me" I'm wondering why he didnt learn to respect people and not be rude in the first place????