One I've had a few times was where I am going over a jump at an unrealistically high speed, and as a result take off so high that death by crashing against the ground seems to be imminent. Never got so far though.
Perhaps I should try to force myself next time; I used to have recurring dreams of falling from high places, but once I forced myself to not wake up during the process and fall all the way to the ground instead - which resulted in precisely nothing, those dreams stopped.