[@KatherinWinter] There's actually a pretty soft spot between the windpipe and the jugular that you can jab your fingers into and tear from. It's the brains limiters that say you can't even though the human body is capable of a lot more than people think. Sure it would break er nails but it's entirely possible. And since she knows she can't die she's not afraid and that instinct to protect oneself from fatal injury doesn't kick in in that sort of situation.