So here's what we do
We amass catapaults, an arsenal of catapaults
We collect piles of rotting meat
We assemble in front of banks
Just remember to frown visibly, and do not cooperate with the authorities!
You can't fuck with the message because THERE IS NO MESSAGE
100% foolproof
We wait for customers to come out of the bank, and fling the rotted meat at them to express our distaste for usury