Move the wall

Benjamin has started to really have a temper about the silliest things - everytime he gets hurts no matter how he does it he immediately looks around for who to blame it on. Usually its me - If he falls on a toy he yells "mommy you should 'baquum' the room" - or when he falls outside he screams "mommy these shoes made me fall - why did you buy THESE shoes" - but he took the award for one yesterday - I saw him walking out of the bathroom while looking at a Calvin and Hobbes book (yes he has taken to having reading material while on the toilet) and while not paying attention he walked straight into the wall! And true to course he stands up screaming at the top of his lungs "Mommy why did you put that wall there?!!!!!!!!!!"