I bet most of us here have dumped a bike.....

[Gene]

But have you dumped a bike rolling backwards?

[clearviewx]

nope

[draser]

I dumped mine at a stop light breaking with handle turned... then when doing drills in the parking lot... there.

[mollusc]

I dropped mine through the plate glass window at the front of a gas station.  Don't ride sleep-deprived, folks.

[Adventurer]

Yup.

[Northern Rider]

Yep, dumped my 73 Kawasaki 900 Z1 on a dirt road by applying the front disc brake too hard. The only thing hurt was my pride as I did it in front of a bunch of my friends (including girls)!