EVEN IF she was able to dig into him, which would be possible at a certain angle, it would have driven the nail back into her cuticle and drawn HER blood. I can tell you...it's very painful.
We scratch like a claw because there is "power" in a claw. (Try it!) All the nails would have popped and or a combination of falling off and "jamming".
I am a male so I have never wore any of these. When my nails start getting longer I start having problems with them. I don't know how people can function with really long nails.