Hey guys, New to the forum. I'm working on adopting my first dog and have decided to foster Brownie before deciding to adopt. He is about 2 years old and the shelter told me he was a Rhodesian Ridgeback and Lab mix or a Golden Retriever and Lab mix. What do you guys think? I see a little Pit or Stafford terrier in him. He is extremely friendly and and greets everyone with kisses and a wagging tale. We have only had him for 3 days and I have a couple of questions? When you get him excited and start playing with a ball, he gets kinda rough and will try to put your hand and arm in his mouth, not all at once . He doesn't bite hard, but the his teeth still hurt. How do I get him to stop “biting” while playing. Second, he loves to hop on the couch and bed from time to time. He will listen when he wants to but has growled and tried to put my hand in his mouth. How do I get him to stop jumping onto the couch and bed and once he's on, whats the best way to get him off? I just bring out his leash and trick him into thinking we're going for a walk. Thanks for all your help.