Read somewhere about a bank robber who wrote a his note on another bank's deposit slip. The teller (quick on their feet) told him they couldn't accept it, as it wasn't one of theirs. Dude left, to go to the bank the deposit slip was for: teller called ahead, and the police were waiting...
Also recall a story of a guy in a major city, walking into a bank at noon on friday. Announced "This is a stick up!" and heard clicks all over the lobby: he was in a bank across the street from an FBI office, at lunch, on government payday. Several FBI agents were there to cash their checks...