Bailey is 7 months and a great puppy. We love him with all our hearts.He is very loving and rolls on his back all the time so we can rub his tummy. THe only problem we are having is when he takes my kids toys or something and we go to take it away he growls and show his teeth and then bites. We dont know what to do. I yell at him and then put him in his crate. Another problem we are having is after we walk him and he does his business, he will come in and pee. Any suggestions or help would be appreciated. thanks