Alligator

Diablo: What do you think it is?

Phoenix: Could be a rat. They can live in the walls, crawl around the plumbing, emerge under the bathtub, come out of the vents.

Diablo: Could be a mouse.

Phoenix: Nope. It's making too much noise.

Diablo: A raccoon?

Phoenix: Too big to fit behind the wall.

Diablo: A squirrel?

Phoenix: That’s possible. If I could get through that vent…

Diablo: We are lucky she left the door open so we sit in the closet for hours and listen to whatever it is.

Phoenix: I’ve been up all night listening to it scurry around under the tub. I’m going to take a nap. You stand watch.

Diablo: You know…it could be a Gila Monster. I heard they have 'em in Florida.

Phoenix: You mean alligator?

Diablo: Yeah, that too.