Hit by a car:

1a.) Michael hit by a car while crossing the street before crash of flight 815
1b.) Michael deliberately crashes his car after returning home from island
2.) John Locke -- in the parking lot of the toy store where he worked (not serious)
3.) Emily Locke - As a teenager, causes Locke's premature birth
4.) Claire Littleton - Forced off the road by a truck
5.) Claire's mother - Forced off the road by a truck (put in a coma as a result)
6.) Sarah (Shepherd??) - spinal injury that Jack miraculously heals
7.) Shannon's father - dies in the hospital after a collision with Sarah
8-10.) 3 Others that Hurley ran over with the DHARMA van
11.) Juliet's ex-husband - mysteriously run over by a bus in Miami after Juliet tells Alpert "the only way he'd let her go is if he got hit by a bus"

Kind of weird, yesno?

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"Helen, do you remember that authentic Australian walkabout I told you about?"