letih your advice is contray to the link that you posted.
Dog's and puppies are not supposed to be punished or to be made to fill fear over having an accident.
In fact at 4 months of age the puppy does not have the muscle development to keep it from weeing at will. So dragging it to its accidents is only going to cause the puppy to be fearful of its owner.
In this link you will find some indepth information on how to train your puppy.
http://www.askmehelpdesk.com/dogs/in...man-53153.html