Oh yes one more thing... You didn't "run over" the crewman, you actually picked him up as a passenger
. Any collision of a person with a vehicle will mount it. If there is already a driver they will take a back seat. If the crewman walks into the shuttle and you're not already inside, the ai will actually try to fly it with sometimes interesting results. Neat thing is if you are in a vehicle and hit ctrl-x you will dismount yourself and anyone else inside as well. So you could take the crewman for a ride by scooping him up and then land and hit ctrl-x and he'll start walking his path again.
Anyhow more to come. Have fun and keep leaving feedback.