The common room was set up with different stations, each offering a different, extremely alcoholic concoction. These included but were not limited to; Grasshoppers, B-52s, Harvey Wall Bangers, Martinis, Long Island Iced Teas, Blue Lagoons, Fluffy Ducks and few with 'hilarious' names like Sex On The Beach and A Comfortable Screw.
Hydration wasn't such a big thing in the 80s. Why drink water when you could just keep drinking cocktails? Especially, if you were starting to feel a little dizzy, there was a very tasty light option - kahlua and milk.
These days, a sense of responsibility usually means serving food at such events, often something like chicken sandwiches, mini burgers and other substantial finger food to slow the uptake of alcohol among an excitable crowd. Back in the 80s, it was a couple of bowls of Burger Rings and some Twisties.
We had loads of drunken, raucous parties at college, but this would have to have been the fastest. It started at 8pm and was done and dusted by 10.30pm. There wasn't a conscious soul left as everyone had either passed out, vomited, become disorientated and lost in the gardens or successfully crawled off to bed.
Based on this, my only experience of a cocktail party with both scope and scale, perhaps it's just as well that most are beer and wine.