Man, I need to set me up one of these. Step right up everybody, lose 20 lbs or pay me $100. Thanks for signing up, ma'am! Oh, how do you lose 20 lbs? Heck if I know lady!
Perhaps donating money to a charity or political party you don't agree with would be more motivating.
Don't finish your course? We'll donate to the KKK and Westboro Baptist Church, and send you a copy of Pinheads and Patriots!
Obviously, that last one would change depending on your political affiliation and/or intelligence, but a light hearted jab at half the country never hurt anyone.
Can't say I condone the method, but interesting anyway.
I'm intrigued now. Why not? (Because of the risk of the KKK getting the donation?)