I do have to admit that this is pretty awesome (anonymized from an email I received from IT today about a scheduled power outage this weekend):
(bolding mine)
Yes, that’s right. They had to shut off power for scheduled maintenance, so they switched the LAN party over to the backup generators. Officially, this was a test of the failover to backup power. 
Is a LAN Party BYOB?
I’ve seen plenty that are BYOC.
They let you have a LAN party at work?
Ain’t no party like a LAN party cuz a LAN party don’t stop. Even for scheduled maintenance.
I don’t really know what a LAN party is, but I’m guessing it doesn’t involve keys and a fishbowl.
I have no idea what on earth you’re talking about, can anyone clarify what the OP is on about?
A LAN party is a party over a LAN - Local Area Network.
Usually what happens is a bunch of people get together in one place and set up local connections (not online) between all their PCs so they can play games together on their PCs without the lag of playing over the internet.
Unless I’m missing something your employer sounds pretty cool to even let you do this in the first place. At my work this would be “a violation of corporate policy and subject to disciplinary action up to and including termination” - their words.
If the OP is in Australia, then it’s the LAN down under.
BYOFP.
I used to work in a 24 x 6 (Sundays off unless we were doing monthend statements) raised floor computer room. The floor was 2’ x 2’ tiles, approx. 8-12" over the base concrete. The dedicated air conditioner kept it quite cool under the floor (more for the separate mainframe room than the computer operators room). If you grabbed the Floor Puller & lifted the correct tile there was a decent collection of chilled beer & a few bottles of alcohol, too. 
Yep. Years ago, working in a mainframe shop, when we had our Holiday pot-luck party, people would bring foods with when they arrived in the morning, that had to be kept cold until lunchtime.
So there would be a parade of people arriving at 7-8 am wearing their winter coats, and carrying containers of food, buzzing the intercom at the computer room door and handing off their container to a computer operator, who would store them somewhere under the raised floor until lunchtime. So many that they had to use many locations in the computer center. Once someone got called away for a family emergency before lunchtime, and wasn’t back for a couple days. It was weeks later when the IBM field engineer was doing some cabling changes down under the raised floor of the computer room and found that forgotten container of food. The computer operators claimed they had tried it, and it was still edible. Knowing those animals, they probably had!
Or playing over the internet but being able to yell at each other without wearing headphones and without annoyed relatives/housemates thinking they’ve gone nuts, and to say “I’m going to grab another drink, anybody else need refills?”