Sad, a tragic accident.
I followed a dude who had a very nasty crash 10' in front of me in the jump gulley at Swinley. He knocked himself unconscious in a brutal fall and was left mooing and gurning as he came round. He was still fucked and had no idea what had happened after half an hour, repeatedly asking the same questions and looking bemused.
The problem with trail centres is that they tend to get pigeonholed as "Huh, Swinley's easy peasy, Afan's for noobs, blah blah blah" when all it takes is a slight miscalculation and you're sprawling in the dirt. The grading system is helpful, but it's not always the jumps and drops that do for riders, an innocuous slippery slab or a off camber corner can be enough to catch the tired or unwary.