worst crash i had was on the ktm. we had a trail that we regularly rode on with no problems, then one day i was flying up it on the ktm,just as i was going round a blind corner i just noticed that someone had put 2 large wooden stumps so that everyone would hit them. I managed to dodge them but i lost my balance, fell off the bike and smashed my head of a tree stump,cuz told me i was laying there for about 10-15 mins out cold, was fine afterwards apart from some scrapes and bruises and a little shaken up.
p.s had my helmet on.