Fighting over money... well not really!

Derek sends me an instant message... "The dryer is making money!" So I call him right away and demand that he tells me how much there is, but that it really doesn't matter because it is all mine!! He informs me that he is not going to tell me because I have to guess! So I inform him that there should be $7.00 and once again it belongs to me. I am the boss of the world and any money that comes out of the dryer is mine.  He tells me that it was $6.00 but that I can have the 7^th dollar if I can find it in the dryer.