I found this blog entry and had to share, thanks Seth (http://sethgodin.typepad.com/seths_blog/2009/06/guy-3.html) :
Paul just sent over this video of a dance tribe forming spontaneously at a music festival.
My favorite part happens just before the first minute mark. That’s when guy #3 joins the group. Before him, it was just a crazy dancing guy and then maybe one other crazy guy. But it’s guy #3 who made it a movement.
Initiators are rare indeed, but it’s scary to be the leader. Guy #3 is rare too, but it’s a lot less scary and just as important.
We need more guy #3s.