Besides the crazy things my Grandma would give out instead of candy? Probably would have to be where I used to trick-or-treat. Our nieghborhood (not grandma's) was just on the outskirts of town and being in central California, that wonderful Autumn weather would just start to become crisp and cool around Halloween. There were some railroad tracks next to a plum orchard behind our nieghborhood that us kids would use during the day as a shortcut to get to the more expensive nieghborhood to the direct east of us and during the day, it was no problem, but at night, it could become rather scary. One particular Halloween, we were supposed to be back by 9:00 and were running a bit late so we couldn't take the lighted streets. We had to walk, in the dark, down the tracks. That night, the fog started to roll in a bit and you could smell the burn-piles from the farmers earlier in the day raining down in the mist. We hooved it faster than we'd ever ran and got ourselves really spooked. Once home, however, we felt safe enough to enjoy the memory of our fear, racing hearts and adrenoline.