Halloween scares my DGC

I really don't want to come across as bah humbug about this. I'm not averse to kids dressing up and people having fun with Halloween if that's what they like to do. But I was walking along our local high street yesterday with my DGC (3 and 5) and was horrified at some of the ghoulish things on display. Some of them were terrifying and I wasn't too surprised when I heard from my daughter that my 5 yr old DGD didn't sleep at all well last night. The cartoon ghosts and whatnot I can deal with, but the really terrifying skulls and blood splattered decor should surely be kept from the front of shops? Especially ones like supermarkets or other places which young children are obviously going to go. It really made me feel very uncomfortable.