We go trick or treating with friends who's child has a severe peanut allergy. Our kids are best friends. It's all good. I never once heard the parents get frustrated or complain. It's the best when we get home though. The boy with the peanut allergy dumps all his stuff out and it is literally a live auction and trading going on in the living room. "Billy, I'll trade you my 3 nerds for your 1 snickers." "Sorry Mike, I can get 4 Laffy Taffy from Johnny for the snickers, but I'll let the Baby Ruth go for your 3 Nerds"