Freeze a Bandit
In the Old House, go upstairs and stand in the bathtub. Wait until Marv or Harry comes and let them jump onto the tub, then quickly shoot them. Exit the tub and whoever you hit will start walking into the wall and will not move unless you touch them or leave the house. You can also get both in there if timed correctly.
Old House Attic
At the Old House, go to the top floor and into the bedroom, all the way on the right. Jump onto the bed, and place a tire. Jump on the tire to bounce Kevin onto the ledge. Place another tire and jump onto it to bounce Kevin into the attic. Up here are multiple items and the Wet Bandits cannot get up here. Watch out because like on the regular floors, Kevin can make holes in the roof and fall through.