While mountain biking down a trail I came down too fast missing the turn. My front tire hit a root and launched me over my handlebars directly into a tree. I took two steps before dropping to the ground. I was a little miffed by what just happened. My friend quickly jumped off his bike and offered to help me. I sat for a few minutes in pain before attempting to get back up. As I stood I quickly fell back down from the pain. My arm was killing me, as it turns out it was broken.
I had just purchased a CamelBac (well a generic one) and I had a spare tube in it. I wrapped the tube around my neck to support my arm and we walked back to my car. Walking two miles up and down dirt tracks with a bike using one arm, is not fun. Then to make matters worse my friend didn't know how to drive a 5-speed. So I had to drive with one hand while shifting gears from Hightstown up to Piscataway. Because my arm brace was a bike tube every time I hit a bump my arm bounced causing so much pain.
But I never thought I'd use a bike tube as a support like that. Don't leave home without them!