I’ve been a behavioural neuroscientist for over 15 years and have taught the genetics of behaviour for about a third of that time. I use pit bulls as a classic example of how genetics can define behaviour.It's all about how the dog is trained and brought up. Nurture over nature
once they are well trained I Don't see how it's any different to any other dog in an office
You can’t unring the bell of generations of selective breeding through responsible training and ownership. When an animal is sick or stressed or scared or threatened, it is going to revert to its “natural” tendencies. That’s true for a rat, for a person, and for a pit bull.
If it wasn’t true, then the Irish Guide Dogs would be using a far wider variety of dogs for their service programmes but they pick labradors because they have been bred for docility and ease of training.
It’s not nurture over nature, it’s reinforcing nature through selective breeding and training can only move the needle so much in any breed or species and to think you can is sheer hubris.