I personally have not had that problem. I started brushing mine the day I got them home and then every morning since. It may have taken 2-3 days, but now they are all so use to it that it's no problem. They even know what order I do them. My problem is trimming the nail on Joey and Izzie, so we're off to the Vet tomorrow to let them do it. GIdget and Emilee let me do anything to them. Good girls!