So this came up recently; resist disarm lets you prevent you from being... well disarmed/weapon destroyed or broken however I received the critical injury from an attack sudden jolt which made me drop my weapon. Does resist disarm prevent this?

Yes. You would still be considered to be suffering from the Critical for purposes of future criticals and for Healing, but you would not actually drop the weapon.

Now if my arm was chopped off causing me to lose my weapon would resist disarm keep me from losing my weapon and losing my poor arm?

hmm, both arms?

Yeah, I'd allow Resist Disarm to be used in both situations.

In the first scenario (drop what's being held), as Richardbuxton noted you're still suffering the critical injury, which means any further critical injuries are generally going to be worse, to say nothing of the strain cost of the talent.

In the second scenario (losing a limb), there's still the fact that your PC has lost that limb, which carries with it other penalties and concerns far above dropping your weapon.

If your Weaponarm is chopped of and you activate the talent (and pay the strain) I would declare that you managed to throw your weapon into the air and grabed it with the other one the sewcond your first is falling of.

IF under any poor luck curcumstance you lose the second arm... well than I would not allow to activate it anymore... but well the fight is over for you at that moment anyway... (except your a BIG Monthy Phyton fan and dressed in a black fullbody armor )

The weapon would still be clutched in your severed limb, so technically not disarmed but dis-armed.

And people completely missed the funny.