do you participate or do you close windows, curtains and doors and pretend you're not home?
I actually don't mind small kids knocking on the door and do usually have some sweets in stock, but now with three cats that aren't allowed out the front door ever I'm tempted to be the Halloween Grinch and hide out in the dining room, park my car around the corner and pretend I'm not home, because trying to make sure the cats don't escape is going to me a mission.
Alternatively I could leave a small tub with some sweets by the front door so kids can help themselves and when they're gone they're gone?