Hi, I am taking Bentley to a show tomorrow, so I clipped his nails. I hate doing this because i've seen someone hit the quick in the nail with my dog, and I'd almost cry if I knew I caused my baby all that pain Whenever I do it, I am extremely careful and just nip off the very ends because I'm scared to get the quick. His front ones or light coloured so they are easier but the back ones are dark. Any suggestions, and how long it too long?