Young and Stupid

You wake up in a gutter, no memory of who you are, where you came from, or how you got there. All you have is the clothes on your back and a small piece of paper in your pocket with three cryptic words scribbled on it: "They're not mine."<br><br>What do you do?<br><br>(No magic. No super powers. No wish fulfillment. Young, stupid, drunk and alone.)