A castaway is about to be rescued.  Before leaving the desert island that's been his home for many years, he's giving his rescuer, a ship captain, a final tour of various grass huts he's constructed.

"This one here is my sleeping-hut.  And this one's my eating-hut.  Over there is one I use for storage.  And, do you see that one with the cross on top?  That's where I go to church."

"What's that other one," asks the captain, "the one that also has a cross on top?"

"You would have to ask about that one.  That's the church I used to go to."