Completely off topic

The other day I was having a conversation with two friends, both of whom had two young children. One friend had to have her mom watch her kids for a week. This led to a discussion of the convenience of having parents around to watch their grandchildren, but also of the fact that the grandchildren always need to be re-trained upon returning home.
Why do grandparents do that to their children's children? Revenge? Wanting to be a favorite? A question asked was, "When do they go from thinking 'the child needs to eat his dinner before getting ice cream' to 'let's give him ice cream and dinner at the same time and let him decide what he prefers?'" I found this extraordinarily funny. It is true that before we become grandparents, we can have some common sense about children. I wonder why all grandparents behave in the same way. It makes me think that I might not escape the loss of reasoning. Maybe instead it is all a conspiracy theory to make their children pay for the suffering they caused.
Another child I know used to throw bad temper tantrums. The child's grandmother would watch her for a week at a time. Once, when the child, mother and grandmother were all together, the child threw a temper tantrum. To this, the grandmother exclaimed, "She never behaves that way with me!" There was certainly a reason for this. The grandmother gave the child everything she could possibly want, so there was never a reason to throw a tantrum. It seemed like for every week that she watched the child, another week was needed to re-train the child.

Morale of this story: Think of how much problems your children give you. Write them down and remember them. Then when they have children of their own, conveniently throw out any logic reasoning and your grandchildren will adore you.