I saw a similar story watching a show on the Discovery channel.
It was about these tribes of monkeys that would visit various patches of fruit bearing trees or bushes in the forest, at very specific times of the year. The times when the fruits would be far past ripeness, and fermented.
What was very dramatic was how it highlighted the alcoholics in the troupe. Most of the monkeys would only imbibe a small portion, have fun, and in general suffer no ill effects. There was, however, always 1 or 2 monkeys that wouldn't stop, gorged themselves, got faced and totally hammered.
They showed one monkey the next day. He clearly had a very bad hangover. I felt sorry for him, but LOL'd, too.
He was holding his head and going "ooooh, maaaaaaaaaaan... . ."