Anatomy of a FDGB (Fall Down Go Boom):
Moved from another thread
Step 1: Have what appears to be a pretty good and uneventful day riding off-road.

Step 2: Do some "photo shoots" with friends
Step 3: Spend too much time socializing between loops
Step 4: Find obstacle that no else is willing to attempt near break spot.
Step 5: Decide to take it blind instead of pre-walking.
Step 6: Pick bad line such that tandem is not perpendicular to the obstacle when you enter it.
Step 7: Attempt steering correction 1/2 way into obstacle... bad idea on a tandem.
Step 8: Recognize that front wheel is "flopping" and start to bail off the front end (note how easily my right foot releases from the right Speedplay Frog pedal)
Step 9: Always make the best of a bad situation and laugh once you confirm your stoker is OK and laughing.