Our youngest who is 6 has in the past week, knawed his way through two $20 dollar leads and has eaten the pocket of my husband's pants in his search for used kleenexes. He has plenty of chew toys around the house. He goes for a nice run every day. He will eat anything in the garbage. When we first got him 5 years ago, he was eating dog poop because he was so hungry. At least he doesn't eat that any more. Any help would be appreciated.