Sweet, but still wrong.

The pictures:



The conversation:

Me: Parker, please come over here.
Parker: What?
Me: Did you draw on the wall?
Parker: Yup.
Me: When did you draw on the wall? This morning or yesterday.
Parker: Yesterday
Me: Is it ok to draw on the wall?
Parker: No.
Me: So why did you draw on the wall?
Parker: I was trying to help you go up and down the stairs with these tracks.
Me: Oh. Thanks, but it's not ok to draw on the wall.
Parker: OK
Me: You can draw on paper or the white board.