Yesterday on the way home, I misjudged my dismount at a stop and straddled the top tube.

Let's just say "It was a bad one."
This morning, I had a valve stem shoot off my front tube. Thankfully I was stopped at the time. I heard a pop like a champagne cork and saw something hit the pavement about a foot in front my foot. That looks like a valve stem I thought. Then the light changed and I started to pedal and my front tire was flat! DOH!
Later I met up with a heavily tatooed 20-something dude wearing knicker length blue jeans and white tank top, waiting out the traffic light by trackstanding on his fixie! I bowed before him.