Just watching all the kids having such a good time made most of the pain just melt away. What a blast! :-)
I remember taking the kids trick or treating when the kids were little. Sometimes the weather was just miserable (snow, cold, windy) but it didn't matter to them. There was candy to be had!
That was at the time there was a lot of paranoia about people sticking sharp objects into candy so I had to check everything first before they could eat it.