The Smoking Pigeon

DogSitter: I figured out what was making the noise in the chimney.

Herb: What noise?

DogSitter: The fluttering and flapping noise.  At first I thought I had inadvertently opened a portal to another dimension when I smudged your house during a Wiccan ceremony but instead it's just a pigeon.

Herb: How do you know?

DogSitter: ‘Cause he’s flying around your house. I have to leave now. Bye!