Playing dead, isn't that supposed to work on Bear's ? Not teenagers...LOL

Katie is right, pulling a knife on a group of people is only asking for trouble. Everyone should be aware of their surroundings, seeing things before they happen so to speak. If you see a group of teenagers or anyone else for that matter acting suspiciously the best thing to do is avoid them, almost the same a defensive driving, don't let yourself get pinned in, always have a way out.Something else to consider having is a whistle, drawing attention to the situation might help to diffuse it before it gets started. I'm no expert but those are some things that come to mind.

Shadow out !!!