Had thought you were referring to a Youtube video (so you could see the # of views).  Haven't downloaded, but I know there's plenty of these nasty videos around the net.

Not knowing what the video is like, I guess it does pay to be a bit smart depending on the community you're in.  I can't imagine something like you described happening often here, but if the US movies are accurate, they probably do happen in some US communities.  If it's common, it would make sense to walk around in groups, or take a taxi.