I nicked Aprils once when she was a baby, and felt horrible about it, it wasn't huge and she didn't even feel it, but it bled a teeny bit. Have learned since then
: )
I use a blunt tip scissors after a bath when the hair is wet and pull it up between my fingers away from the ear leather edges and trim that hair that way. (against my fingers, so scissors is flat against my fingers) Use a small wahl trimmer for the insides and back of the ear. (The time i nicked her was using the trimmer on the edge of ear, and she pulled away from me)