1 small group. We didn't have any decorations up, though we did last year, so maybe that's why they came. We had 'stuff' going on so all the lights were off and we didn't answer the door. The dog rushed to the (closed) door and barked at them all really loudly and they all screamed and ran off. So I think they definitely all got a scare! 🤣
NB: we normally decorate and have treats ready, plus the dog is normally in another part of the house on Halloween, as he does love to bark when the door goes, but we weren't prepared this year and didn't think anyone would knock!