I remember when this happened when I worked at Zio's.

I was almost done with my shift (I was a host at the time, we stayed until the last customer left), and this boomer motherfucker and his "date" easily half his age stroll in less than a minute before we were closed. Proceeded to take 2 hours of everyone's time, being a dick the entire time, and doesn't tip. When I saw he didn't tip, I decided to prank the fucker (it was just me, the bar tender/assistant manager, and one chef left at this point, amd I discussed the plan between the customer asking for the check and bringing said check to them).

I locked the front door and waited for the customer to try and leave. When he asked why the door was locked, I responded, "I'm sorry sir. We closed about a minute after you arrived. I'm afraid we'll all have to wait until 9am when the auto-lock disengages to leave" with a big 'ol fake smile that all retail and restaurant workers give.

He chuckles, says that's funny and asks me to unlock the door. Bartender jumps in and backs up my claim, with the same fakeass smile as me. Now he and his date are looking a bit nervous, and he says, "Surely there is a way to unlock the door, right?" when the chef responds, "There is one way, but there is a fee that the manager won't be too happy to pay when they get here tomorrow. If you're willing to pay it, I'm sure we'd be willing to disengage the lock." Now, the guy is drunk but the girl didn't drink a sip, so she's caught on to what we were doing, but he's completely buying into it.

However he had been a royal prick to her their entire evening and I could tell she was on our side when she says in a clearly fake tone, "Honey I don't want to be stuck her all night. Let's just pay the fee and gooo." She continues fake begging for a few seconds until he gets annoyed and says, "Alright alright! Shit, how much is the fee?"

Bartender states it's $100. He slams a $100 bill on the host counter. I tell him I'll be right back with the electronic override device (I'm holding back snickers at this point, and from what I could tell so was his "date"). I go back, grab one of the radios we used to communicate during dinner rush, bring it to the door and mix some of the beeps with the turning of the lock to really sell it. Door unlocks, both are leaving, and I very blunty say with a fake ass smile, "Thanks for covering that fee for us! Remember to never come again!" to which he just waves us off without looking back while she's giving me a happier wave.

I could tell we had made her night by fucking him out of $100. The three of us laughed about it while cleaning up, and swore we wouldn't tell anyone else for obvious reasons.

I only worked there for a few months before they went bankrupt and closed, but I have very fond memories of that place.