Hmmm, I'm not saying this is a wind up, but nobody I've spoken to who went to reading (or the 5 people I saw the other night who worked at Reading including Sussie) said nothing about it. They all stayed until Monday. It's entirely possible that they just didn't hear anything about it.

Different sites say that it was Leeds fesitval not Reading.

This is a wind-up, there's no mention of it at all on the BBC News website or indeed anywhere other than this post on LJUK.
Seeing as how the Beeb website had an article yesterday that mentioned the riots at the second Woodstock, you'd think they would have at least mentioned it.
That and getting stabbed in the abdomen and it cuts your bollocks off, then being able to stagger to a chair, sit down, check yourself out, THEN pass out? not impossible I'm sure, but really bloody unlikely.