Roxie barks at other dogs whenever she sees one. She was clearly never socialized. I tell her no, leave it, sometimes she listens, sometimes she goes absolutely mental, screams likes she's being murdered, pulls, barks, runs. Really crazy.
When she does this, I stop, tell her no, get her attention and make her sit and stay until she calms down. She always does, even if it takes a few minutes (When I'm walking her with friends, they always take off, embarrassed. Then Roxie carries on because she is being left behind. It drives me mental).
Normally this is at dogs behind fences. The other day we came across a dog walking, and the owner waited until she calmed down before passing. As soon as the dog got near her, she was silent and cowered.
She has never snapped, never bitten, even out of fright (though she's never been *that* scared with us). She is scared of the doorbell sometimes, not the phone though. When she is scared she immediately finds an exit and runs. I'm not sure how she would react being cornered, I'm definitely not going to test it, I imagine she would defend herself if she had to.
Can this behavior be considered aggressive? How can I fix it? I'm trying to socialize her more, once she's met a dog for more than two minutes they are the best of friends, but we've basically met every dog we know and new people aren't too keen on helping.