When I got my first paycheck from my first job, I went down to Walmart and bought a Huffy road bike... (My first ever new bike) So... we loaded it up in the truck, brought it home, and I went over everything, made sure it was assembled properly, tight, adjusted, etc.
By the time we were done, it's getting dark out, but I REALLY need to take it out for a test ride.... no lights, only the reflectors that are on the bike.
No problem, we're in a small town, neighborhood, hardly any traffic... so out I go.
I'm cruising down a cinder road, no street lights or anything, and hit a rut where someone got stuck and spun their tires getting out.... FLIP! Bike goes one way, I go the other.
Normally, I could roll with the landing, and hardly even feel it, but... no lights. It's PITCH black, and I can't see the ground coming.
I skidded about 10 feet down the cinder road on my left arm... removing a good deal of skin from my wrist to my elbow, tore my pants and my shirt, and gouged out a 3/4 inch deep hole right below my elbow (I still have that scar!)
I limped my bike home (luckily it was only a half block...)
Yeah... that was fun to explain.