It's lunch time and students are piling into the cafeteria only to find the lunch lines backed up because students ahead of them misplaced their swipe cards or forgot their PIN numbers. So, the Lunch Lady manually charges the accounts and unfortunately, debits some of the wrong accounts. Now you can expect to hear from parents. Will the school's budget eat the cost of the erroneous cafeteria charges once again? Sound familiar?

For a solution to this problem click here.