hi there i have a 6 month old Staffordshire bull terrier he was well socialised with dogs from an early age ,he loves my sister in laws dog and has played with lots of other dogs on the estate and we have let him play with dogs of various shapes and sizes , but the last two days he has begun to bark at other dogs and growl at them we met a cute 10wk old Stafford tonight on our travels we got together to have a chat and say hi the puppy went to sniff mine and mine growled twice i told him off by saying NO and after that he behaved and they played a little while ,then when nearly home there was a lad on a bike with a border collie running by his side he went mental growling and barking at the dog i know he was not growling at the bike as he doesn't bat an eye lid at people on bikes ,is this just hormones starting to kick in or do i have a real problem ??
I will be having him neutered ,he is due for his adolescent check up at the vets end of this month
Thank you in advance