Y2K. It wasn't wild but it was a lot of fun. I figured that since the world was going to be blown to bits by rogue nukes flying everywhere that I may as well be somewhere that it wouldn't really matter so I picked up my GF and her daughter and went to the camp. It's in the middle of the woods in the middle of nowhere, no power, no running water and no cel reception. We all had a great time playing card games and playing darts and just being silly. The daughter(12 y/o at the time) fired a 12 gauge shotgun for the first time at midnight to ring in the new year... knocked her back a step or two.

Also lit off some fireworks.
Then in the morning all was right with the world except that some new model cars were coming up as "horseless carriages" at some DMVs.
This year is going to a quiet, stay-at-home evening, probably with some chinese food delivered... and a bottle of rum.... good rum.
Happy New Year everyone. May the new year see a return to more normal times.