The scene from "A Bronx Tale" lays this out best. Some kid owes Cee $10 and keeps skirting him. He's mad, he wants to beat him up, get payback.
Sonny says "do you like the kid?"
"No"
"Then there you go, he's out of your life for $10. You never have to deal with him again, you got off cheap."
Wow! I love that! Thats a perfect way of describing it hehe ;)