The #2 most common bike accident they call: The Door Prize
A driver opens their door right in front of you. If you don't have time to brake, you crash into it.
This kind of wreck is more common than you might think: It's the second-most common car-bike crash in Toronto, and holds the title for #1 crash in Santa Barbara. Bicyclesafe.com has made a list of cyclists killed by running into open car doors.
How to avoid this wreck:
Ride to the left! Ride far enough to the left that you won't run into any door that's opened unexpectedly. Riding further left (than curb and parking lane) is recommended to avoid several of the most common bike accidents.