Operation Boo

Opening their door violates parole. Even when they're a sex offender who had an offense not related to minors at all.

This of course, doesn't prevent them from opening the door for kids the rest of the year for fundraisers or cookies, so it's totally pointless, because that's a time when there's more likely to be trouble, when you're isolated and people's guard isn't up.

One thing I wonder is what about people with peepholes? If you hear a knock on the door, you are allowed to look through the peephole to see who it is. That does not violate parole. If you look through, and instead of children, you see a police officer, and you open the door... does that still violate the parole?

With the intensity that these guys are knocking on the doors (prior to identifying themselves) to me, it is a very adult-sounding knock. Little kids just do not knock loud. That's why there are doorbells, or people keep their doors open or stay on the doorstep or whatever, because otherwise it'd be really easy to miss a trick-or-treater.