I noticed on the internet that some lady is going to give kids letters telling them they're too fat instead of candy for Halloween. I know childhood obesity is a big problem, but appointing yourself God is not the solution. She's not these kids parent. Give out other stuff if candy bothers you. My dad gives out dimes. I don't know how many they get this year, but I'm sure it's worth more than cheap candy.
When I was a kid, and the crowd I ran with was actually quite tame, we still would've egged the living crap out of her house if someone had pulled that. I hope the local supermarket is well stocked.