Kids can come trick or treating

I'm really looking forward to this. I want to set up for it.. have a smallish home party or just use the calendar to have visitors or scary movie night and play the spooky music and decorate (with or without little kids in my sims home). I really want to see how many NPC kids come to my sims door. I hope it most of them show up if your set up for it. I can see blocking a week off for this holiday alone. I wonder if you can interact with them or invite them in also? Hmmm...
I may have to replay some ghost households so they can scare the trick or treaters. So many ideas.