Most of us have experienced premonitions - a sense that something is going to happen. Premonitions can be as subtle as a gnawing feeling or can be so overwhelming that they jolt you out of your everyday routine and prevent you from thinking of little else. They can be vague or vivid. They can foretell something that happens a minute later... or weeks or even many months later. They can come while you're doing the dishes or they can come in dreams. If you have one - what then? How do you report it? Who do you tell? Here are some answers.