Yesterday morning Dogger decided to draw a continuous line (or as he calls it, trail) on the walls from his bedroom through the hallway, our bedroom and the bathroom. With black crayon. The only room he skipped was Goosey's. I can only assume he wanted to avoid her wrath.
Since water alone would not take the crayon off, Dogger's punishment was as follows: You must use your spending money to buy a magic eraser, then you must scrub the walls clean. He bought the erasers, but in the end I did most of the scrubbing. Hopefully the lesson still got through.