In their defense, Boris started it. As you can clearly see, he was messing with their sidewalk chalk while they were busy drawing.
See? Innocently drawing, oblivious to the rainbow-pawed kitty on the porch, who was chasing the sidewalk chalk and batting it around, presumably for no other reason than the fact that it rolled.
It should be noted that I did nothing to stop this. I feel that the kids and cats should settle their differences among themselves. Within reason. If too much bloodshed ensues, I will intervene. Possibly. If I'm not in the middle of a row of knitting or anything. But for the most part, I ignore. Ignoring is my favorite parenting technique. This could explain a LOT. Boris doesn't look very happy with my parenting techniques, does he?
The finished product, a cat of a different color! Several different colors. I wish it had showed up better in the pictures, because he was really quite noticeably colored. You can kind of see it in this one. It did wear off in a couple of weeks, so all's well that ends well.