"Experienced trail leader" my ass, not buckling up negates that...

Unless you're in something without doors, you're not going to be able to "bail out" even with your seatbelt off. There either won't be time to do so, you'll be on the downhill side where it's gonna fall on you, or on the uphill side where you can't even get the door open to get out without a tremendous effort.

Wear your goddamn seatbelts!
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