OK, I have a couple of mad scientist characters who are planning to kidnap someone. In order to keep her from escaping, they want to sever nerves in her arms in such a way as to cause finger paralysis that would stop her from opening a large wooden gate. I need her to survive this - either they deliberately do it in such a way as to cause minimal bleeding, or she has bleeding but it's not so severe that another character won't be able to save her by simple first aid. So, any of you with medical knowledge, which nerve is the best target? Both the medial and radial nerves, if severed, should affect the thumb, right? Which of those two would be easier for two people with medical knowledge but not much equipment to sever without too severe of blood loss? The victim needs to survive at least a day.