Farfl Digging Indoors

It's hard to tire a chihuahua out when it below freezing outdoors. Which is why it's great when she can find a game that expends a lot of energy while doing no damage to herself or the furniture. Here's a video of her digging indoors. She seems to get a lot out of it and it doesn't do much damage to the fleece liner to her crate. I don't let her do it for too long - I don't want it to become an...