Copied and pasted from my post on the Ranger board. The second statement, I think, may help answer your question. Some information is not pertaining to your issues - please ignore it if it seems like a non-sequitur. It may be helpful to someone else, though.
In my experiences with several characters with the Disarm skill, I've found the following information to hold true across the board, and I'll add a little logic to each one.
- You can only skill up Disarm by attempting to disarm mobs with weapons - what are you going to disarm on an UNARMED mob?
- You cannot successfully disarm weapons with a "MAGIC" tag, although you can still practice your skill - if you could disarm them so easily, they wouldn't be very magical, would they? This rule also applies to the Pickpocketing skill.
- You can skill up Disarm on ANY armed mob, regardless of level - practice is practice, even if they make it easy on you.
- You CAN disarm weapons with the "NOTRADE" tag - not sure about this one, but once you pick it up off the ground, you're stuck with it, and there's no "Are you sure?" message.
- Disarm generates a fair amount of agro, so it's useful, if for no other reason than keeping the mob angrier with you than your cleric.
I would also like to add that Disarm does not generate nearly enough agro to use it as a substitute for any of your other skills as a Warrior.
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Jiriki Sa`Onserei, 120/67k AA Wood Elf Ranger
Anadriel Starfire, 120/46k AA High Elf Mage