How to Tell if Someone Is sometimes make a mistake

Even doctors sometimes make a mistake and call someone when they're just  out of it but still alive deep down. That said, assuming you're not a doctor but you need to tell whether someone is, pranking or sleeping, you could try some of the suggested "tests" outlined below. However, since you aren't a doctor, if your "sleeper" or "prankster" fails to come to, you'll also need to get expert advice without delay.