The San Francisco Municipal Railway (MUNI) is the city's bus, trolley, cable car, and light rail vehicle transit system. The city's thoroughfares are loaded with trolley, cable car, and LRV tracks, and are notorious for tripping up bicyclists and sending them flying if they attempt to cross the tracks at anything other than right angles.
Yesterday was my turn. It was a gorgeous day, I needed the exercise, and decided to go for a spin on the Paramount. It's the ONE TIME I decided not to wear my helmet. I was riding up Market St. and saw the MUNI tracks taking a right turn, so I intentionally veered right, then back to the left so I could cross them at a more obtuse angle. Well, the angle wasn't obtuse enough and the front wheel caught the track. The bike went right, but I went left. I had been doing about 25 mph, so I flew for about fifteen feet before coming down on my left shoulder and forehead, and my right hand. The results are a separated A-C joint in my left shoulder, four stitches above my left eye, and a broken right wrist. The ER doc at Davies Medical Center said it's called the "MUNI Dive", and they get several per week.
There's no permanent damage to either me or the bike, but it'll be a while before I'm out and about again. Over the years I've been very lucky; in nearly sixty continuous years of riding, this is my first significant spill.
My forehead isn't nearly as photogenic as slvoid's bubblebutt, but here's the photo anyway.
Be careful out there, and please wear your helmet.