We're taught to trust authority figures.
V/pizzagate or v/GreatAwakening ouldd be the best place to drop at Voat.
>write Q on the cash you spend
Especially small denominations.
$1s, $5s get circulated to the public immediately as change, get respent, get recirculated etc.
$20s don't usually get recirculated as change. They get deposited in the bank and recirculated from ATMs.
>Banks will be more likely to pull a bill that has been "defaced". A cashier at a store will be less likely to notice or care.
Use red ink if you do this. Red isn't picked up by currency counting machines, so the bills will stay in circulation longer.