The two coolers at the bar in question are the only place in the nightclub where the energy drinks and beer are stored.

On that day, a summer-special competition began that rewarded any nighclubber able to drink 5 energy drink vodkas in 5 minutes with $100 in prize money.

During that week, a special "New Year's Special" sale was in effect for the beer.

On the subsequent day, the remaining 10% of energy drinks all sold within the first hour after the nightclub reopened.

At the beginning of the day, the energy drink cooler was stocked with at least as many drinks as in the beer cooler.