Not quite Dads, but near. I have two grandsons, now both close to 30. When they were teenagers they were constantly in trouble, then suddenly the problems all but ceased. We were happy, thought they were " Growing up at last!!" A few years later I was talking to the eldest one and mentioned this sudden change, and he told me that is when they had applied "The Grandad Rules". These were, before they did anything dodgy they asked themselves the question, " If Grandad found out that we had done XXXX, would he be mad or Happy?" If the answer was "He would be MAD!!!" Then we didn't do it. I thought that was a nice compliment.