Fall asleep.

From Create Your Own Story

You fall asleep. Ignorance is bliss for the next few minutes before your pipe drops out of your mouth upon your clothes, nearly igniting them. Thankfully, you were fast enough to stop any real harm from coming upon you or your home, but you made a big ruckus. Whoever was outside resumed his knocking, and the door seemed as if it were rattling upon it's hinges.

Answer the door.

Yell angrily at the knocker to go away.