Some of my faves! ...
"Do these stairs go up and down?"
Guest: "Did anyone die in my room, I think there's a ghost in the wardrobe.." (noise was caused by ship's movement in turn making the hangers move!)
"Could you train the dolphins and whales to jump at command please."
"What time is the Midnight buffet tonight?" (hmmmm..let me think!)
Bless them!