Science shows us that animals learn best and are less stressed when they are rewarded for behaviors we want, rather than punished for behaviors we don’t want.
For that reason, I will never use punishment or intentionally aversive methods or tools (e.g., shock collars, yelling, leash corrections) with your dog. Instead, I will manage the environment to prevent unwanted behaviors and facilitate desired ones, respect their boundaries and seek to give them as much agency/choice as possible. I make liberal use of treats as rewards.
If you have particular concerns about your dog’s behavior, I am happy to discuss how I would address it while they are in my care. I can also refer you to certified trainers and behavioral consultants.