I don't know how this happened, but while DH and DS were home today, DS drew with pen all over an entire dinette wall. I'm a little surprised, because the kid is almost six and has never done that - and also because it looks like he spent a lot of time on it. Like, I'm guessing he was at it for at least half an hour. It's regular paint, not glossy. Is there a way to get that off?

I suppose that if all else fails, I'm painting a mural over it...