I get into a moving vehicle, the first thing I do, after I shut
the door, is always fasten the seatbelt.
I even fasten it when backing into the garage, where it certainly
would do me no good. Never make any exceptions.
If I forget it momentarily under stress, I have an automatic
reminder that something is wrong, and I'll fasten it.
I am subconsciously uncomfortable in trains or buses without a seatbelt.