My friend's old dog, Max, had a terrible habit of ripping the wallpaper when he was a puppy/young dog. This habit kind of stopped when he got neutered (a lot of his boisterous energy was down to the doggie hormones), but when Tracey (my friend) went to hospital to have her youngest, Max started tearing the wallpaper again (I think it was because of all the panic around him stressing him out), but he was really sneaky about it and actively seeked out some wallpaper behind the sofa. It didn't help that Tracey and her husband had recently redecorated...

I believe he was also caught on the sofa a couple of times when he shouldn't have been...

I miss old Max...