Throwing a birthday party for a bunch of kids is not an easy feat — there’s all the planning, the hordes of tiny people running around shrieking and yelling and shoving cupcakes in their faces while refusing to go to the bathroom when they have to, not to mention the expense involved. Nonetheless, the parents of one five-year-old boy say that despite that stress, the mom of their son’s friend shouldn’t have sent them an invoice after the kid missed a birthday party without advance notice. [More]