What about Santa?

"Okay," she started, a bit pensive, "so, if you don't have a fireplace, and you don't have a chimney ..."
"Uh hum?"
Starting to worry a bit, "... then how is Santa supposed to get into your place?"
"Oh, well, I've been overlooked for years, I guess."
Biting her lip, a bit chagrined, "Oh..."