Best laid plans

For some reason, I had this illusion when I set up Olivier's play area in the living room: he would of course stay on the play mat. 

It didn't take long for him to show me how things are really in baby land! He rolled the whole play mat to end up almost under a bookcase, playing with the cover of his toy box. 

Someone better get to baby proofing. And that someone has to be me.