Gary Wilkes' Real Clicker Training | Adherence to a flawed ideology resembles nothing so much as abject stupidity…GW
I'll just leave this here.
Positive reinforcement and negative reinforcement are great for training dog stuff you want your dog to do. Sit down stands etc. When most clients bring a dog in for board and train though 9 times out of 10 it's because there's a behavior they need stopped and they need it stopped fast. No better way to do it than positive punishment.
When it comes right down to it positive punishment is the quadrant that saves dogs lives.