I have a male who is almost 2 years old & still chewing on everything he can!! I have used the bitter apple spray & that seems to work but I can't spray everything like my clothes!!! Any suggestions?? Why does he chew, & sometimes eat, everything like a kitten still??? He even bites the corner of the wall, the corner of the marble sink, not just soft things. Sometimes I think he is going to break a tooth because he bites on things that are hard! He has chewed through multiple wires--too many to even count! I now have wireless keyboard & mouse! He eats a lot of things too--which really worries me because he has actually thrown up things he ate like paper & strings. We are super cautious about leaving anything he could get to but he always finds something--he even goes in the garbages sometimes. He is the most affectionate kitty & he has a great personality too! Any suggestions on why he chews & eats everything? I don't want him to get sick or worse.