<human>: So my younger sister has a 7 month old chocolate lab. I'm home from school for the Summer, so I spend a lot of time with him. I think that he has issues with behaving and listening to commands and understanding boundaries, and she thinks its all ok and that hes just a puppy still, and I shouldn't expect any sort of respect or manners from him. He bites all the fucking time. Chewing on my ankles, my shoes, and most of all my hands. Any time I try to play with him, hes biting at my hands. If I pet him or scratch him anywhere, he bites my hand. Hes on my arm rest right now biting my hat and chewing on my arm. If i throw a toy he goes and gets it then wants to fight me for it, and he always inches toward my hand. If I try to correct him (I read that pressing their lip into their teeth is a good correction for that) he stops long enough for me to take my hand away then tries to bite at it again. Playful biting but biting nonetheless. He jumps on me when I'm not even paying attention to him and I push him off, say "no", and it never changes. I probably don't know what I'm supposed to be doing. But its getting incredibly frustrating and its now causing problems between my sister and I, and I especially don't want that. I can't correct her on the way she trains him because in her mind I am incapable of being right about anything, even when I'm right. I'm looking for some general tips. Please any gem of advice will be most appreciated!

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<bot>: My sisters 7 month old lab bites, jumps on furniture, jumps on me, scratches me, bites me, wont leave me alone when eating, chews my shit up, etc etc. Looking for training tips.