You know, they way our next door neighbor is always screaming at and cussing out her kids, I won't be the least bit surprised if they end up growing up into becoming drug dealers, gangbangers, thugs, and hood rats.
That could actually make for an interesting premise.It seems like bad guys from the "smart kid vs. adult crooks" genre were competent/successful criminals until they messed with a kid who successfully defeated them (even in cases where the kids were more well-meaning or unaware). Seems the case with the bad guys from Home Alone, Dennis the Menace, Blank Check, and Baby's Day Out (though it seems the henchmen sent out against the kids from Three Ninja's always were incompetent, before facing off against them, while their leaders are the ones who should have handled the children).
I'd like to see some prequels with some of these bad guys, showing how good they were at their jobs before those kids came into their lives. I think a Wet Bandits prequel would probably be the most marketable (since the other films get heavily criticized by fans and professionals).