No one wants to back down from a drinking challenge, even if you're this old dude. Two other dudes fill him up to the brim with Hennessy and try to get him to drink the whole thing without stopping. Props to him for being able to do it and owning it by asking for more, but dude immediately regrets his actions afterwards. He drops to his knees out of the grass and I don't know if he is already blacking out or needs to throw up. I'm guessing this was the last time he ever goes for something like that.