u/Anxious-Sugar-3372

My golden retriever puppy is 7 months old. He's a literal ANGEL with humans and has so much love to give. He's been in training for 7 weeks where he goes 4 days a week and gets plenty of socialization - and we haven't heard of any concerns from his trainer about his behavior. However, yesterday he got aggressive/growled and tried to bite a french bulldog, and today he tried to "attack" a fellow golden puppy. It was really scary and worrisome to see. He's been amazing with so many dogs - burmese mountain dogs, small dogs the size of his head, vislas, etc. So I'm concerned it'll be hard to predict what dogs he'll be ok w/, vs what dogs he'll be aggressive towards. Any advice?