Would you put one round your childs neck?
I want my dog to be close to me because he wants to be, not because I force him to be through pain and fear.
Besides which it would not work on my dog - when he stands on his hind legs his head is way above mine!!! You would not be able to 'pinch' the collar tight!!!
It has been proven in a recent study that people who used confrontational training methods (like pinch collars, Alpha Downs etc.) are more likely to get bitten by the dog.