My yorkie, Jacky is 5 1/2 months old, and I saw a little blood on his hide a squirrel..squirrel, I've noticed small amount of blood on his stuffed toys. Is he teething? how do I know?
He is starting to bite everything, and its driving me nuts, he bites his bed, I got it patched up and he bites another spot. The toys are all destroyed too

He managed to bite a hole in one of the squrrels on the first day. I expect him to bite his toys so its ok.
I recently brought him a gorgeous, beutiful bed that for half his cage (2 by 3 ft i think) but I'm scared he'll bite it, will he grow out of it? If so, then hes going to have to wait.
theres also some other problems with him that I have to deal with
He pisses on the carpet if I let him have total control (no leash) after playing for a while, in fact he can go more then once. I understand that it happens if hes too excited, but this never happens in the basement. ?
I want to let him roam the house by himself, but hes obviously not ready yet.
this guy also barks like crazy, if he wants u to hold him, he'll bark, if you are ignoring him because you are eating dinner, doin dishes, whatever, he'll bark. Basically, if he wants your attention, he'll bark, sayin NO is useless, he'll just talk back and bark even louder.
When he sees anyone in the family, he'll get all excited (waving his tail) but he does not know how to play nice, he nips at our hands even when we say no and give him his toys to play with.
We still love him though, he has one of the cutest face of all the yorkies I've ever seen.
But will he grow out of it? Is it a puppy thing?