I have two black dogs with black nails. I used to be so afraid of making them bleed, I'd almost be sick just thinking of cutting them. That's all I did was think about it...took them to the lady that used to groom my dogs. I would groom my dogs, but not do nails. Robin gave me the courage to just DO IT! I've made Suzie and MiMi bleed but LadyBug hasn't. Her nails are brittle and theirs are not. I try to do nails when I give a bath and I use a dremel after I cut them. The younger two are good about their nails, but LadyBug is a mess....I know it is because I was so scared of it. I only had Molly Bee, LadyBug and Suzie when I started cutting nails....Molly and LadyBug never did bleed, but the first nail I cut on Suzie bled. I about had a stroke....but we were both still breathing so I thought....oh well....guess it happens. I've made MiMi bleed to. I just get out the "stuff" for bleeding nails when I get the tool and don't look back. I know I wouldn't have the nerve to cut someone else's dog though...