[Stuey]

You go buy some drug on the cheap but something that will make them all pass out. I'm not a drug expert but anyways you get that stuff. Then you go sell it to the kids really cheap or for free and when they pass out you search for the cash.

I'm joking of course. Lock them in the house ask for the money if no one gives it up call the cops. Semi bluff but be prepared to go all the way if they don't fall for it.