> Scenario 1:
> Well, imagine an accident that cracks a propane line or the tank itself....
> Kabooooom! End of Westy! And end of people if they are in it.

Not quite, although the risk of fire and explosion do
exist.  Just cracking a line is not going to result in
an instant exp[losion or even any explosioin.  And any
impact sufficient to crack that tank and make it
explode when the valve is open would crack the tank
whether the valve was on or off...besides, the impact
would probably kill you first.

> Scenario 2:
> Your propane flame does not blow out on the freeway. But being absent minded
> like me you drive into the gas station and forget that it is on... under
> certain circumstances (perhaps rare, but they do have those no smoking signs
> on gas pumps for a reason)... you can imagine the rest.
>

the hazard here is being absent minded, not propane.
You can forget to tighten your lug nuts or seat belt or
gas cap, too.  Besides, what are you doing with gas in
the pass compartment?  Or parking where fumes are thick
enough to pose a risk of explosion...from a bad
sparkplug wire or alternator sparks.

> Scenario 3:
> Your propane flame does not blow out on the freeway. You don't get into an
> accident. And you are not stopping to fill up with gasoline. But you perhaps
> you are absent minded like me... You stop to fill your propane tank. The
> attendant forgets to ask if your pilot light is off. You forget too.....
> Kabooooooom!
>

Any bozos like this would deserve the darwinian award.
Besides, under this logic, you should NEVER use the
propane cause once you turn it on, you may never
remember to turn it off before encountering a deadly
explosion situation.

> Bill