A mother infuriated her teenage daughter with a new house rule.The mom shared the situation on Reddit's "Am I the A******" forum.She has three older teens who eat a ton of snacks.Fed up with the expenses, the mom insisted that each teen buy their own snacks."We have instituted a rule that they buy their own junk food," she wrote.Everyone seemed to think the agreement was fair except for her daughter.People thought the parents were being fair about the arrangement