- Double down on debt.
Any good gangster knows that you do people favors before asking any from them. Because when people are in your debt, you can more easily persuade them to do something for you.
This technique can work in any scenario—a political boss and his constituents (or underlings), a nasty sibling rivalry, a group of friends on holiday at a health spa.
I kept your secret, now you keep mine. Capisce?