I've crashed maybe 10 times in my nearly 2 decades of active commuting, and by "crashing" I mean either body or bike required some kind of attention afterwards. In addition to those I've done the failure to unclip a couple of times. It's far, far more embarrassing than anything else.

Most severe of these were in my early days of commuting, I needed some dental work done after a face plant due to rainy / slippery surface. Other than that, smaller cuts and bruises and minor repairing for the bike.

Out of the 10 I'd say 7 were my fault entirely (too much speed for the conditions, not being alert enough etc). 1 wasn't my fault but I should have known better (front brake lockup to avoid crashing into the guilty party, with predictable results) and in about two cases I couldn't have done anything to avoid the crash. One of these was a dooring incident.

I am apparently improving, because the interval between crashes is increasing, in terms of both calendar time and mileage. I am aware I just jinxed myself with this post.

Crash threads are worthless without pics. There's the "MS Paint your Mishaps" thread in SSFG that has total ownership over everything in this regard. [edit] Some of the mishaps there are NSFW. [/edit]