Background: I worked in one of two big cinema chains in my hometown in the UK a few years ago.
This particular instance was for a big spy movie when it came out and I had been in place for roughly a year.
Orange Wednesday (give you a clue how long ago!) - everybody loved it. We sold out our 4.30pm showings of the movie the week that it came out, with the last ticket going around 3pm.
No problem, we knew it would be busy and all the boards quickly updated to show we were sold out until the 6pm show in another screen.
Note also: a lot of sales were online presales
Queue begins to build up, most people are happy to go for later showings. At 4.20pm I call over the next customer, who has 3 people with him.
To my horror, I realise he's my old teacher who never really liked me, but thankfully he didn't seem to recognise me ... small mercies!
Him: 4 tickets for movie.
Me: I'm so sorry, we've sold out until this evening.
Him: what do you mean you've sold out?
Me: unfortunately considering the day and the new release we've filled the screens showing it.
Him: where are my tickets?
Me: I'm sorry sir, I can't sell you any tickets for this showing. I can sell you for -
Him: give me my tickets. What do you need?
Me: (clueing in to what he's definitely not told me) have you prebooked your tickets?
Me: okay, that's fine. Just need your card to swipe to release them.
Swipe card. Print tickets. Double check. Hand them over.
Yeah, cos it's so hard to tell me you *have* tickets and not just that you want them.
I'm not a mind reader ya know!
And jeez, he taught kids from ages 11 to 18 how to function in the world ...