Bloodmoney!

You're struck with a serious condition and the only treatment available is an expensive operation. $25,000, to be exact. How are you going to get that money in time? It seems hopeless. Dire, even. 

But then, BOOM! THERE HE IS! THERE IS HARVEY HARVINGTON!  IN A STALL ON THE SIDE OF THE ROAD! $1 IN EXCHANGE FOR JUST ONE CLICK! THAT'S THE DEAL OF A LIFETIME!

"Really?" YES! "How much will he give me?" AS MUCH AS YOU CAN CLICK HIM FOR! "Can he give me more?" YEAH~!

Sure, $1 per click is good, but how about $2? $4? $8? All you need to do is hurt him! Needles, hammers, scissors, whatever! The more pain you inflict on him, the more money you'll get! The question now isn't "how much will he give you" so much as it is "how much can I make him fork over?"! The only limit is your sanity, as well as Harvey's life force!