I worked at an event company for a while.
They had a big A0 plotter/printer thing for doing large schematics/plans for stadium/conference-center size gigs.

One of the new production managers accidentally printed a kitlist (ie a list of all the kit needed to do the gig that gets packed by the warehouse and trucked to the venue) on the plotter.
He wanted to cancel it, but all of the other PMs told him to suck it up, let it print and give it to the warehouse.
It was all dutifully signed off and packed.
Normally the original lives in the office until the gig is done, with photocopies sent to site... But photos were taken as the office copy, and the A0 kitlist was sent to site.
The shame must be writ large.

We had a printer in one of the sites I work at that could print lots of weird and wonderful paper sizes, I think A2 was the maximum.

It would remember your last used settings though, so if you'd needed to print some map or drawing on a page you could see from space, you had to manually select that paper tray, but critically you had to remember to change it back. Whatever tray you sent the job to, the printer would automatically scale it to size.

If you'd printed a diagram one moment and printed a team sheet for the next day, forgetting that critical interim step, you'd end up with a list of people assigned to tasks that ordinarily be an A4 page, printed at 400% size and having to be blu-tac'd to the wall rather than just pinned as usual.

I say "having to", it could easily be reprinted in A4, but it did the same job and conveyed the same information.

It was entertaining seeing the odd letter appearing in A2 which had no hope of ever fitting in an envelope, or someone's kid's four-to-a-page birthday invites inadvertently blasted into A3, negating the point of it being small and able to be stuck to the fridge or whatever.

Fun times.

Back in the days, we had a requirement that certain papers have to be 40 pages long, give or take two. I was the goto-guy who knew how to do 1.45 line spacing instead of 1.5, twisting the page margins and such things to bring smaller and larger texts "in range".

I once typeset one guys complete paper on one A4 sheet just for fun.