It's related to body size, but the effect isn't so drastic that different dwarves are either dead or not drunk. I do fear for gnomes somewhat. Perhaps that's just the course of their lives.
Madness string 43307
The protagonist, a speechless cat-thing called Kitling Ripe, performs a series of elaborate rites to rescue members of her extended family, culminating in the resurrection of her 'other grandmother', Moldywarp. When the Snake-Witch killed the horse, Kitling snatched one of its eyes. When the Dry-Witch killed the pig, Kitling stole a cup of its blood. Then she took them to the place Moldywarp lay buried, and she shook out her hair, and she began to dance...