Chimneys

Me: How does Santa get into our house?

T: Through the chimney.

Me: What's a chimney?

T: I don't know. What is it?

Me: It's that thing on top of the house where the smoke comes out.

T: Oh yeah, is it connected to the fireplace?

Me: Yes. So how does Santa get in through there?

T: He goes into the chimney. What if the glass was in there and the fire was on?

Me: What do you think what would happen?

T: Santa would burn his bum.