Just Jack

Jack: Why isn't my name Kevin?
Me: Because your name is Jack.
Jack: But, I like Kevin better.
Me: Well, I like Jack better so that is what we named you.
Jack: I will give you 5 quarters if you start calling me Kevin.
Me: No, I am going to pass.
Jack: How many quarters is it going to take?
Me: There aren't enough quarters in the world to make me change your name to Kevin.
Jack: How do you spell Kevin?
Me: K-E-V...wait a second; you already know how to spell Jack, why don't you just stick with Jack?
Jack: Okay