Learn your lesson once.
The only people who are going to be willing to take you up on this offer are #1 ) people who have no money and therefore cant play any other way. or #2 ) people who have no intentions of paying.
I got stiffed by surfboard, you got stiffed by surfboard, General got stiffed by Anthony, and the list goes on. Why do you want to put yourself in another no win position ?
Why did you bet again last night ? If you had went 2-6, you would owe $200 and he would ask you where is his money ? Do you think you have a better chance of collecting that $800, than you did of collecting the $200 ?