church on a holiday?

As the Preschool Director for our Wednesday classes, I was recently told that we've been given "permission" to allow the children to "dress up" in appropriate costumes for our class time on Wed., Oct. 31. Someone else said something like, "Why don't we cancel church on holidays?" (referring to Oct. 31.) I was thinking, "Well, the church doesn't exactly celebrate that holiday."

If anyone reading this has any opinions, I'd love to read them! Please leave me a comment!!!!