Funny story (and why you should never worry about being a dork). When I purchased my current bike, I was riding an old touring bike with stem shifters. My new bike has Shimano Ultegra and I have to get used to the handlebar/brake shifters. I was riding in the driveway of my apartment complex, had my head down watching the cassette and derailleur while shifting and didn't notice the wire strung across these two poles and yes... you know the rest. My first concern after picking myself up off the pavement was "is my new bike OK?????" It was and I have been happily riding it for years. Another story... (yes I have lots of them), when I first got pedals (after riding with cages for 20 years), I had several major falls. I stupidly put the pedals on and went the next day and did Cruising the Conejo. Let's just say it was an experience and my wounds have long since healed. It's just part of the sport. Relax, practice and learn to fall!!!!