Coal is eating the walls of my 9 month old house! I know it's my fault for not watching him but I am still stressed out about it! It used to be that I could leave him in the kitchen unattended in his x-pen while I did things but I just heard a strange sound and went in to see a hole chewed right in the middle ( I don't even know how he could have started the hole!) of the wall that his x-pen is up against. Before this he chewed a corner on one wall and the corner molding on another wall when hubby was supposed to be watching him. Anyway, HELP! What do I do???