Daddy and Mommy decided to give the kids a little motivation for getting better times out of there very unmotivated childern.
Daddy: Kids, Mommy and Daddy have decided to pay you for improving you times in swim team. We will pay you a dollar for every second that you shave off of your time.
A couple days later...
Tessa: Daddy, you are going to have to stay at work a lot longer.
Daddy: Why is that?
Tessa: You have to make more money because you are going to be broke after you are done paying me for my times.
Daddy: I am glad to hear you are motivated.