Take a look at what was going on at this mall (in Canada) on the 31st of October.
Trick-or-treating ... indoors.
Sometimes, it gets cold in Canada ... so where can your kids (who get super excited to dress up and get candy) go on a cold potentially even wet evening? The mall. Brilliant.
Great for the kids sure ... but think about it from the parent's perspective. Better yet, from the retailer's perspective ... you have the attention of parents, roughly one month before the holiday shopping season begins!
Why not use this opportunity to give them coupons/discounts for future shopping? Why not give THEM a treat?