Me as a cashier in my own establishment.
Me: *places sign on checkout counter that reads, "No bills over Jackson."*
Customer: *comes in and buys a case of soda, two bags of family sized tortilla chips, and dip*
Me: *scanning items* "Having a social gathering?"
Customer: "Yeah, we're having a party."
Me: *rings up and bags items*
Customer: *looks temptingly at the candy below the checkout counter*
Me: "That'll be a Lincon, two silver Washington's, and three copper Lincoln's, sir."
Customer: *looks at me like I'm stupid before looking at the register screen for the price*
Customer: *shakes head, handing me a Benjamin*
Me: *groans* "Sorry, no Benjamins. We only accept bills under Jackson."
Me: "I'm sorry, sir, no exceptions."
Me: "Sir, your total is only a paper Lincon, two silver Washington's, and three copper Lincoln's. I can't take a Benjamin from with."
Me: *violently shakes head at customer because he's starting to turn into a white Chris Tucker.
Customer: "But, I'm all about the Benjamins,baby."
Me: *kicks out customer and looks into camera like I'm on the office*
Me: *drenches storage in booze and gasoline before setting the whole place on fire*
Me: regrets it all and does it again accept better (worse) this time.