I guess it comes down to what one's beliefs are. I think that when it's your time, that's it....nothing you can do will change it. I do believe in being prepared, and taking steps to mitigate damage and/or injury, but I'm guessing a storm shelter capable of surviving an EF-5 is rated to survive windspeed and debris.....but what about a semi, railroad car, or D11 cat dropped on top of it from 3000 feet up.

There's always that SOMETHING that hasn't been planned for, or taken into account. No shortage of things waiting to get ya!

"Forget pounds and ounces, I'm figuring displacement!"

If we accept that: MBG(+)FGSF(=)HBG(F1)
And we surmise that: BG(>)HBG(F1) while GSF(<)HBG(F1)
Would it hold true that: HBG(F1)(+)AM500(x)q.d.(=)1.5lbGRWT?
PB answer: It depends.