Amanda has a long history of narcolepsy. She has tried all sorts of remedies from caffeine pills to doing jumping jacks every ten minutes to stay alert. After falling asleep during a law school final, she decided to see a doctor for some professional advice. The doctor prescribed "Stay Awake" medicine. The medicine seemed to work well and Amanda didn't have any more embarrassing 'naps' in class. Two months later, Amanda was riding her scooter home when she fell asleep behind the handlebars. She then crashed into Felix. Felix decides to sue Amanda for negligence. What result?