Time Machine or Decapitation Hazard?

Right now I think I'm just glad that gull-wing doors are rare. I was biking in to campus this morning at a fair clip--in order to keep with traffic--when I was hit with a door.

A delivery-type truck-door popped into my field of vision, it's edge barely far enough out to catch me. Had it been a passenger car, I'd have cleared it easily. Instead I was thrown around/over the door, rolling out towards the sidewalk so I didn't damage myself in the landing.

Even so, it really wasn't great. I'm bruised and scraped and was very, very startled at the speed with which crap happened. I'm okay, but I don't want any part of that again, and my bicycle is the worse for the wear. The two lower-geared drive sprockets are bent--the lowest-gear bent dramatically--presumably from impacting the door. The cross-post has a big streak of the door's paint. Poor bicycle.