pups will be pups, glad its all ok, the same nearly happened to us last week with our pup (well she's 7 months) left her in to put the big dog out she was in the concevitory she chewed through the electric fire cable, normally it is plugged in, but luckly the fuse had gone in the plug and the wife unplugged it that evening she had chewed it so bad we ended up chucking it in the bin, but better to trough the fire than to find your dog dead!!!!!!!!!!!!!!!!!!!!!!!!!!!!!