This should be lined up like a pie eating contest.
Tell the guys you are shooting a bit to see who can drink the most very old milk without vomiting (and every person participating should be drinking from a gallon jug). And the winner who drinks the most or doesn't vomit, gets a thousand bucks.
THE OLD MILK ISNT REALLY GOING TO BE OLD MILK ITS ELEPHANT JIZZ
After the contest goes down (tell the winner and the loser it wasn't milk it was ELEPHANT JIZZ)