How does he do that?

Yesterday, when I picked Cody up from preschool, they reminded us Wednesday is the Christmas party. I commented on it to Cody, and he told me Santa is coming to the party. I said wow, that will be fun! All this is being said as we walk out the preschool doors. Cody is turning his head and looking back at the top of the church's building (his preschool is in a church). I asked what he was looking at and he replied, "I wonder where their fireplace is? How is Santa going to get into the preschool?" :o)