[ He feels bad making their house into a war-zone, but it's probably for the best no matter what. There's always something strange going on, and when their house is separated from the rest of town, it can either be good or bad. ]

I was hoping for a little more of a deathtrap. Bombs, giant rocks, a poison-electric wire fence. [ That's probably a joke. ]

Or you could just dream up some giant monster guard.