Are you serious? Come on, Julie is being totally unfair- she invites a boy to her son's birthday party, then the boy has an emergency and can't go, and then she forces them to pay 25 dollars anyway? , Like Julie, use common sense, You invited them to go and they have a decision whether they want to go or not. They happen to be your guests, not your slaves. Personally, I think she wants to take all the money for herself.