Cocker Spaniel Aggressive Towards Strangers - Why?
Aggressive Cocker Spaniel? Not Me?
Our Cocker Spaniel has been well socialized since we got him as a puppy and has always gotten along with every dog and only had issues with a few people (mostly small children).
We take him to the dog park at least 3 days a week at varying times so that he meets new dogs and dog owners and gets to play with his own kind as well.
He turned 1 this past November and in the last month or so, has become aggressive towards more strangers when he is on leash.
Usually trying to go at them and I have to pull him back multiple times and tell him NO.
He has also become aggressive towards people that knock on the door before coming in. For example the UPS man (which he has known his whole life), a new plumber and even some of my friends that he has met before. He has actually snipped at a couple of these people.
Any advice on what I can do to prevent this?
I feel like he is just being protective in these situations, but I definitely don't want him becoming too over-protective and biting someone.
Thanks in advance!