If you want to get technical, it's getting a glass and repeatedly pouring it in the drum for - you know, office party, next year of binge drinking or whatever.
If you offer unlimited and only give 2 drinks / person, you're lying, shame on you. If you drink more than 10 people combined, you're drunk with questionable social compass. When you take more than 100 or even 1000 people, then you are technically correct - the best kind of correct for a sociopath.