Kids and I

I love kids and I love to be able to spend time with them and play with them. I just don't know what it is about kids and I. The kids usually end up totally exhausted after spending time with me. I just took Payton home after having her for 4 hours. She fell asleep for about 35 minutes then woke up all smiles. It was a good fun day. I guess though that there is something about me that makes them pooped. When I was watching Andrew he tired pretty quick too. Oooopps???