I knew a guy who downed a case of beer before noon every day and then finished off a quart of whiskey(don't know the brand)between then and bed time. He was surprised when he quit cold turkey and ended up in the hospital.
Alcohol withdrawal is a nasty thing. You can actually die from it. I bet he had the shakes, sweats, anxiety, and one screwed up heartbeat.
Construction worker?
My ex-wife's uncle was a card carrying carpenter. Red polished off a case of beer a day, every day. When he was watching a ball game on TV his dog would fetch him a cold one from the fridge. He did fall off a roof once, he was drilling a hole with a 1/2" electric drill when the bit stuck. The drill was way geared down and it torqued him around and flipped him right off the roof before he could let go. That was his story anyway.
Regards,
GtG