I'm letting fresh air in.
You're letting cold air in.
Well, actually I'm letting fresh air in.
But the fresh air is cold, so you're making the house cold.
Well, it's good to let fresh air in.
Why is it good to let fresh air in?
I don't know. Hasenpfeffer.
Note: Hasenpfeffer is Dad's answer to the question "Why?" when it's asked too repetitively.
