However, if an accident does occur, please do not hit the puppy with a rolled up news paper, yell wildly, or rub their nose in the mess. (thedogsway.com)
Never hit your puppy while you are training them, they don't understand the behavior and will become afraid of you. (sivet.com)
Don't hit your puppy with your hand, newspaper etc. you are only going to ruin your relationship with your dog. (pethelpful.com)