I had an idea for this game after hearing a news story on the radio about two parents who sold their sons cat for $140000 (they were selling their house and the buyer offered that much extra if the cat stayed).

Basically, you answer the previous question and add your own.

Person 1: Would you sell your cat for $140000
Person 2: No, but I would for $140001.
Person 2: Would you sell your soul for a donut?

And so on. So the first question...

Would you sell your cat for $140,000?