Until fairly recently (long after 1989 revolution), "All Hallow's Eve" celebrations (called "Dusicky" = "The Souls" in Czech) meant that you went to a cemetery and lit a candle there. I am happy to report that - at last - Czech kids are warming up to the idea of scary Halloween masks and monsters. Unfortunately, no trick-or-treating yet. (Click below.)
P.S: Baby Jesus (who brought Christmas presents to Czech kids for many centuries) already got his ass whupped by Santa Claus several years ago.