When a California retiree missed a decimal point and sent Comcast an online payment of $6,894 instead of $68.94, the massive overpayment didn’t raise any red flags in Comcast’s system. It didn’t cause a cascade of overdrafts in his bank account, either, since he had enough money to cover it. To bring the situation to Comcast’s attention, though, he had to enlist the help of a local newspaper and a television station. [More]