I wasn't even done with that one; I just took a break to get a picture, so I could educate you people. Here's what it looked like when I was done with it -- a small amount of Magic Eraser shrapnel scattered on the floor:
* -- This hypothetical assumes that the scuffs weren't scared off the walls the minute Chuck Norris walked into the room. It would never happen in this universe. If physicists can have theoretical massless ropes and frictionless pulleys, this theory can have Chuck Norris using a Magic Eraser.