I don't think they were being sheep at all. I read they had just gone after some terrorists and had two in jail. I think that may have been why this happened - or - I also read that they had recently published some mohammed cartoons and this was being posted on a forum a few days back as a reason to attack them.
Sounds like courage to me.
Invaders are not always soldiers...
... and immigrants do not act like invaders.
But we jail some and publish cartoons, and call it courage - as they keep coming, by the millions, with disdain for the West in their hearts and conquest on their minds.