The quicks in a dog’s nail are like the quicks in our own. The quick grows longer as the nail grows and recedes when the nail is cut. Cutting into the quick is very painful to the dog, and results in profuse bleeding. By filing or clipping often, just a little at a time, you won’t hurt the dog, the quick will recede and soon your dog will have short nails with nice, tight feet. It’s simple to orient a puppy to the task. With the dog standing, sitting, or lying down on the grooming table, get the clippers in hand daily and pretend to clip nails. After a few days, begin clipping the edge off several nails, the each nail. Soon the puppy will know the routine.