Infiniti2000 said:The weird thing about disarming is that you technically have two methods to "disarm." You can use the disarm Combat Maneuver, which works like you suggest (maybe) and the Sustained Force, in which your opponent would just get a will save to negate.
We rule that one needs to use the Combat Maneuver 'disarm' to target items held in hand by an opponent- i.e. "you knock the opponent’s weapon out of his hands and to the ground" as stated in the Disarm description.
The sustained force option applies only to objects in the opponent's possession, but not actively in hand- their hat, a sword in its scabbard, etc.