he's 10 weeks old and i just got him wednesday. we've bonded and he always seemed to really like me. he always followed me and came to me when i called his name. but i wasn't saying "no" firmly enough and he wouldn't obey. lately, i've been saying no more firmly. today, i feel like he's giving me the cold shoulder. he keeps trying to bite and and when he's not, he doesn't really respond to me when i call him. i don't know if this is normal or he just hates me now. help