fell and landed head first on matting when he attempted to leap across a gap from the climbing wall to a bar
I don't think this is in any way important legally but it is good publicity, especially to scum bag lawyers (shurley shome misthake) who might advise idiots to claim for self inflicted injuries.
At £200 per hour I'll get back to you.
Volenti non fit injuria is generally understood as meaning that a person participating in a risky venture with consent cannot sue if injured.
a person participating in a risky venture with consent