Last night Brett was cleaning up some toys that got dumped behind the toy bins in his room. I came to see how he was doing and it was all cleaned up but I see "someone" had wrote all over the wall with colored pencils. I asked him what is this? Immediately he said "I'm sorry Mommy". He knew he shouldn't have done it. I said, ok, time to start cleaning it up and gave him a Magic Eraser. (Thankfully those work on lots of things.) He started scrubbing and decided it was hard. Yep! I showed him how he needs to use pressure and it will come off.
After a while I asked him "Why did you do that? You know you only write on paper, you can write whenever you want, didn't Mommy tell you not to write on the wall?" He says "I don't know the why about everything!"
Then it came out that he wanted a track on his wall. Seemed like a good idea. I explained that *I* decorate the house and if he wants a track on his wall he needs to ask me about it. That made sense to him. So I don't think we'll have to do that again soon.