They both went right at it and it took about 2 minutes for Bo to start painting himself instead of the shower wall. :)
He did this, then said he was the Hulk:
So I decided to help him along and make him look a little more like Hulk!
He pretty much yelled/growled the rest of the time. haha!
Mae was a quiet observer:
Surprisingly, they had it cleaned up in about 5 minutes with a tub of bubble bath.