The morning after?
"I'm sure he would be hungover, like anyone would be after drinking heavily. But everything is proportional, so even though he drank an extraordinary amount of alcohol his hangover may be relative to his own size. So it would probably be normal, all things considered."
And his first trip to the bathroom in the am, it would last forever after 156 beers, right?
"That's an unpleasant and unsavory question, and not really possible to know for sure. But yes, I'd assume it would last a very long time."