That day, Suming took the Macaque Group and the Gibbon Group to the back mountain. The Macaque Group was skilled in wine brewing, while the Gibbon Group's 'wine brewing' was purely an imitation done in a fit of pique, spurred by the macaques.
A big pile of rotten fruit, though it could ferment into wine, didn't equate to Monkey Wine. If it was that simple, there wouldn't be a need for monkeys to brew it—Suming could've done it himself. So he never really expected the gibbons to successfully brew any wine; after all, those few backpacks of fruit weren't worth much, and it was okay to let the gibbons have their fun and waste some fruit.
Unexpectedly, the gibbons actually managed to produce wine!
