Explanation

John decided that he needed to talk to Joy about the "you're not the best mom in the world" comment, and we found out what occasioned her statement. The other day, Joy had a friend over to play. The girl said she had the best mom in the whole world. When I asked why, she told me that her mom let her have all the candy she wanted, and she still didn't get cavities. Apparently, if I want to be the best mom in the world, I need to take out stock in candy and toothbrushes!