Grant has a habit of clutching his butt when he is punished so to make sure he stops doing it he has to count the strokes, and if he rubs his butt the count starts over again. Not the easiest thing to do when you have already gotten used to doing the other way, thats why the count restarts several times. With an ass covered in welts Grant eventually makes it to the end, he is a slow learner but he might remember this for a while.