The info under Tricky McPlastic is news to me.
When asked whether he’ll be paying with cash, this customer says yes. But when I come back with a tray full of drinks, the customer will hand me a credit card and say, “Is this okay?” Well, it would have been okay if you had told me five minutes ago. Now, it’s actually a huge pain in the ass. You may not know this, but I already paid the bar — in cash — for your drink. See, I’m allotted money at the beginning of the night with which I buy drinks from the bar, getting reimbursed by you. But I can’t tell you that because then I look like the difficult one. You just wasted five minutes of my life, asshole.
Basically, don’t be a jerk.