Just don't use the shock collars. They can make a dog completely psycho.
I run to the door quick-like if my dogs bark outside at night. I'll let them get away with a few barks during the day, but no longer than a minute. Luckily, most people here have dogs, so we put up with each others' intermittent barking. My neighbor's dog did bark all night once when the owner left him there alone. I was more annoyed that the dog was in distress than with the noise.
I run to the door quick-like if my dogs bark outside at night. I'll let them get away with a few barks during the day, but no longer than a minute. Luckily, most people here have dogs, so we put up with each others' intermittent barking. My neighbor's dog did bark all night once when the owner left him there alone. I was more annoyed that the dog was in distress than with the noise.