Or more appropriately, pawprints.
Have you ever noticed that dogs don't care what they're stepping on in their race to get somewhere? They fully embrace the mathematical truity that the shortest distance from point A to point B is a straight line. My dog will step on you, the cat, Christmas presents, mud, - or, say, a tray of fresh paint.
I now have doggie footprints painted into my carpet.
Oh, and a freshly painted room.
One room down, one to go. I need more drop cloths.