Mal

I was looking to my left to see if it was clear to merge onto the straight bike lane. The next moment when I was looking back forward I launch into the air. What I think happened was when I looked to my left, I must have had turned/leaned the front wheel as well. So that stopped the front wheel so I went flying.

Seriously though... I honestly have no idea how I did it but I did it. It was on smooth pavement too. I do this maneuver a few times a day. So I've been thinking on the...

Ouch... I jackknifed down a hill once: Grabbed a water bottle and started drinking, but something surprised me and I squeezed the brakes - didn't account for my weight shifting forward, and I ended up leaning on the bar, cranking it sideways and launching. Fractured my elbow... by landing on my hands (luckily gloved).

I don't see how you'd accidentally turn that hard shoulder checking - might you have braked with one hand?

I was slowly braking, so maybe since the left lever is the front breaks.

Eh. It just happened so fast.