Was all this coin stuff in the corner to the right of the away fans? I was over there, and while it all kicked off when we scored (coz someone in our box got over excited), I didnt see any coins flying about. Quite intimidating though. Took an age for the stewards / rozzers to get involved and it never calmed down fully. Only saw one arrest and I think it was a brighton fan (as he was getting a few in the face for good measure from a guy in a West Ham shirt).
To be honest - the huge kick off around us served as a welcome distraction from the huge smile on my face!