What?!?

I think my youngest child reverted back to being 2 this afternoon. When he got home from school he had his snack, played with Caitlin, colored all over a section of the living room wall in pencil and number 2-ed in his pants, in the bathroom, when I sent him to time out. What on earth is he doing?!! The only reason I knew he had had an accident was when Luke complained that something was really stinky. Jonathan had "cleaned himself up" which leads me to think that it truly was an accident and not him acting out. He doesn't have accidents! I wonder what happened? And why on earth would he color on the walls? ARGH!!!!
Motherhood is never dull, is it?