@catherinenosleep As a positive trainer who specializes in fear and aggression rehab, the misguided worry about "rewarding aggression" is one of my biggest pet peeves.
They are biologically incompatible concepts.
A dog who experiences positive emotions when seeing a stimulus with NOT show an aggressive response, period. Change the emotional response and you will change the behavior.
I've successfully reconditioned enough dogs that I've lost count.
My own dog, an intact male Akita (a breed known for dog aggression) went through a phase of reactivity and dominance aggression when he hit sexual maturity. He was 100% the type of dog people would stop taking around other dogs and just write off as not social with other dogs. We worked through it, and now he's the LEAST likely dog to fight at any park or beach we go to, taking other dogs displaying dominance or aggression in stride and avoiding conflict. I dogsit and do board and train, and he adapts himself to other dogs coming into our home, his territory, with grace and kindness. People who see him now constantly express awe at how excellent he is, and people who know the breed are shocked. We got here by me literally pushing food into his face WHILE he reacted to other dogs, "bribing" to lure him away from fence fighting, petting and praising him a ton, and punishing him NONE.
Consider sports and jobs where aggression is desirable and intentionally increased. How do they accomplish that? They sure as hell aren't calling the dog away and giving it a treat. They increase arousal by allowing the dog to stay focused on the stimulus and by adding further stressful and agitating stimuli like restraint, yelling, prongs, estim, physical contact, etc. You know, the things owners of reactive dogs tend to do accidentally.
It blows my mind that this person could simultaneously recognize that an aggressive response usually comes from fear and yet also advocate for corrections.