Aww, he looks younger than 5 months? Maybe he's deaf too like Nakita, judging from his markings. I know what you mean about turning you grey. My two are constantly causing Havok, especially Willow who likes to chase around the cats and nip them on the butt. Mine are out most of the time but when company comes over they both go in a cage...Willow more so because she has a VERY bad habit of biting people's toes!