I promise I will never forget again. Please, please, please. Every parent can add the dramatics needed to complete these scenarios.
Children have an instinctive ability to beg and plead their way out of consequences.
They honestly believe what they are saying. Faced with the consequences of their latest action, they DO believe they will never do it again or that they will remember to do it the next time, depending on the infraction. The fact is, they won't. What they will remember is that it is possible to beg, plead, and cajole their way out of consequences. Giving in to a child's distress and agony is not a kind thing to do.