Fitness Guru

So it's about 1:30 and Jacob is exercising on the Wii fit that Grandma and Grandpa bought us for Christmas. He really enjoys the running exercises. (What???) Anyway, he is in the middle of doing lunges when I glance over to see that he is completely doing this exercise wrong. So I walk over to try to show him that he should not be completely down on the floor on both knees. We all know how a correct lunge goes, right? Anyway, he says I am wrong and that he is doing it right. In the meantime, the exercise is over and the Wii is rating him, as I am trying to explain proper form. He says "MOM!" gently turns my face toward the TV screen and it says "Well Done Score 93 Calorie Incinerator" I guess I don't know as much as I think I do!