The Little Rascals S17E08 - Tiny Troubles

Alfalfa decides to trade in his unceasingly cranky baby brother for another baby found in the park. They take the baby home and soon find the baby doing rather grown-up things, like drinking beer. The police show up and it's revealed that the baby is Light Fingered Lester, a pickpocketing midget. The gang gets arrested, since the cops think that they're all midgets, too.