My dog, Biggie, has a huge problem right now. He's 2 and 1/2 years old and whenever someone leaves and says "BYEEEE" he get's very upset and tries to jump up and bite whoever that person is. He hasn't been doing this his whole life it's only a recent occurrence.
Like today for example I was at my parents house visiting and when I was getting ready for Biggie and I to leave.. my Mom said "BYE!" and came in to hug me while I was holding Biggie and he snapped at her and tried to bite her. I saw that coming so I ended up getting nipped at which didn't hurt that much. After that I scolded him and told him BAD but he struggled with me and still was in a biting mood.
This occurs when I have people over and they say BYE and try to leave.. or even if someone is rustling their keys. Biggie will run over to them and bark and jump up to try and bite them! It's horrible and embarrassing that I have to tell my friends that come over not to say "BYE" or my dog will bite you.
How can I change this? I've told him BAD and NO after he does this but he seems so focused on someone leaving that he is consumed by it. SOMEONE HELP BREAK THIS HABIT! Any tips?