for 5 bucks I will refrain from coming to your house and throwing toilet paper in your tree.
For a 10-er I will promise to never steal your newspaper from off your front porch.
for 15 bucks I will let you go ahead of me at the line at Costco
For a twenty-sack I will politely keep to myself when we are sat next to each other on an airplane.
For 50 bucks I will not fart on an elevator and then blame it on you.