I had my first attempt at trimming my roosters spurs the other day. The first one went well then on the second one I went a little to far and his spur started to bleed. It's all Ok now, but both his spurs are still quite long. Is their another way of shortening them without making them bleed or should just taking the tips off be enough for the hens? I only trimmed them for the ladies sake, he never attacks people.