Turn This House Upside-Down

My friend's black lab mix when he was a puppy. He grew up into a perfectly respectable dog... but when he was a little thing? Hoo boy. Psycho. If DA could upload video files you'd be able to see the blur he was running through her house. Every time he burned himself out enough to lay still and rest for a few minutes, we were amazed.

Submitting to #100ThemesChallenge for Variation 1, #72: Mischief Managed