Phew, what a day. There is another side of mountain biking that isn't all that pretty, and I'm compelled to share. We heard this morning about a friend who broke his neck riding yesterday. Fortunately he has movement in all limbs but still faces surgery and recovery. Actually it's the second guy in our group to do this. The other one was a couple of years ago.
On my own ride today I did a classic endo for only the second time in my 4.5-year mtb history. It didn't feel any better than the first time. If not for the helmet, the dent the bike that landed on top of me made would have been in my head. And I really need to work on that tuck and roll thing instead of slamming the knees into the ground.
ALWAYS wear a helmet and be safe out there!!