Are Japanese snacks scary?

I'm planning to have people over for Japanese snacks and drinks, and I think some people are sort of scared about it. Why, I don't know, because Japanese snacks don't bite. I've noticed varying reactions, from "cool!" to "oh...why?" to "yeah, I'm uh busy." Living abroad made me see things differently, to the point of changing my definitions of what "normal" and "odd" are. But I think some people aren't as, well, adventurous. Maybe it's weird and possibly nerdy to have a Japanese snack party, but life is bland enough to necessitate weirdly harmless things.