Yes we tried the crate but he was so hard getting him my husband had too fight with him to get him he would even growl. AND he has 10 toys where he sleeps I have a gate across my laundry room. What would make tear into ur walls though? I know he is a still a puppy and likes to chew but why walls. I have not had a mice at first I said maybe he hears something in the wall but I have a fairly new trlr.