Dogs are kind and loving, they will quickly forget a one time thing and move on. But they remember regular abuse and will not forget it. Dogs remember people through conditions. They are likely to remember their abusers in the conditions that led to the abuse. Therefore, it is unlikely that they will trust their abusers again.  However, if it was a one-time occurrence followed with care and attention, a dog may begin to trust again. But, dogs that have been victims of abuse should never be left with their abusers and may need long periods of rehabilitation to become healthy and happy again. It is important to remember that hitting your dog is a form of abuse. But suppose you hit your dog once accidentally or out of frustration. In that case, you can get them to trust you again, only if you are sure about giving them the love and affection they need.