this is a VERY VERY rare occurance.idk
some of my friends have gotten in accidents and the cops/paramedics said if they would have been wearing them they would have died, so i guess it just depends.
i always wear my seatbelt anyways, especially after watchin all those accident videos in drivers ed
98% of the time, a seat belt will save your life. Its saved mine.
My routine.
Start car
Pull out of the garage
Phone/cigs in door pocket
Put my Harness on
Close garage
(dont let my car idle in the garage kuz no cat stinks up the house :p )
I dont go anywhere without my car idling for at least a few seconds (the time it takes me to put on my harness)... i know it doesnt need to idle for minutes on end... but a few seconds is good to make sure oil reaches the head/etc. etc.