Actually, it can work that way, depending on how low it drops. (and how quickly) My sister is diabetic and was at work when it hit her. She could tell she was falling but has no real memory of exactly what happened. Her co-worker found her on the floor. It took her a day to start feeling normal again. I also had a brother who was diabetic. Once he blacked out behind the wheel of his car in rush hour traffic. Took out a concrete bus bench and hit the corner of a building. I also watched him have a seizure suddenly because of a drop in his blood sugar. It was terrifying to watch. Ultimately it was a low blood sugar that took him from us. He was found on the floor in a coma and lasted 19 days in a vegetative state before we had to make the decision to remove all support. He passed away within 36 hours after that. That being said, I did get the joke.