We have to identify the quick of the nail. The “Quick “ is the nerve in the nail that if cut can be painful and bleed.
Support each toe as we grind therefore minimizing the vibration and give enough resistance for the grinder to take down the nail.
We have Styptic powder ready to stop the bleeding if you accidentally filed the nail too short. Yes, even we will sometimes cut a nail too close.
We move to another foot until we have filed all the nails.
Then we praise your dog for letting us work on them.