There are so many reasons why pet owners hit their pets. More often than not, it is out of great anger and frustration in trying to get their point across to the poor pets. You see, the said is not the proper way of training your dogs.
When you use physical dog obedience training, you are only teaching your dog to shy away and and be scared of you whenever your hand and voice rises. Learn how you can possibly train your dog in this great article about dog obedience training at http://petloveblog.com.