I have been trimming Lacy's nails since she was eight weeks. She used to run and hide everytime I brought out the nail clipper. I don't need help to hold her down though since she is small (she's a rat terrier) but it is hard since she shakes violently and I'm always afraid I'm going to cut the quick. Most of my other dogs are fine with it. But I do have a few that won't move their body but they'll jerk their paws away from me.