I think any reasonable person could conclude that on Halloween any regular social interactions are a bit different. That is, unless you have children coming to your door dressed as zombies in the middle of March. So actually, the reasonable expectation of a child in that case, given the day, is that they would receive candy. That you slide in your tract alongside that candy is being forced.
I would tell you, that if I were walking with my children and I saw that they received that from you, they would have to walk back up and return it to you.