My complaint:
These little girls and their leaders act like buying Girl Scout Cookies is a requirement. If you don’t buy something from them they give you a nasty little face. I realize rejection sucks. Nobody likes it. But if I’ve already bought cookies, how do you know that? I wasn’t nasty to you, why are you going to be nasty to me? What happened to being polite and respectful?
Suggested solution:
When Girl Scout parents and leaders teach, train and explain civilized values, like respect and understanding, monitor their little prodigies for proper behavior, best example being THE example, and teach them how to deal with rejections, that they aren't personal, and it's okay to be told NO.