Me and my boyfriend adopted a red nose pit mix (we don’t know what he is mixed with, just says hound mix on papers) when he was 6 months old. He was great when we first got him, listened really well, listened to command like sit and paw and stay. He was giving us issues with pulling while on walks but we got a short leash and that worked for the most part. He was great with meeting new people and other dogs. He absolutely loves running around with the other dogs at the park. Now that he is 1 years old he suddenly does not like other humans. He tries lunging at anyone walking by, and if they even try to approach him he starts growling and snapping. We don’t know what to do because every forum says keep socializing him, but we can’t if he is trying to bite people. He is still great with other dogs just not humans. He doesn’t show any aggression towards me or my boyfriend, just strangers! If you can please give us any advise! Thank you in advance!!