I'm guessing you don't give the neighbor kids any candy that night.
We live out in the country, on a private road with only a few neighbors, none with small children. I can't ever remember seeing a trick or treater out here.
But IF a kid did come by, I would politely explain to them that we don't celebrate Halloween and thank them for stopping by.
And I'm guessing he's cleaning up a lot of raw egg and toilet paper the next day.