There are a bunch of situations where I think an Alchemist hiding his vestigial arm could come in handy, such as:
1) Placing both hands on a table to illustrate that you're no threat to the person across the table, then stabbing them with a poisoned dagger.
2) Getting captured and shackled with the assumption that you only have two hands.
3) Cheating at cards.
4) Stealing/palming an item small enough to be held in one hand, and then showing your two innocent palms.
5) Picking a pocket.
6) Passing an item to a comrade surreptitiously.
Most of these are going to be sleight of hand checks, some of which might arguably be aided by a bluff.
But what of the basic hiding of the arm itself? Sleight of hand (An Alchemist skill)? Disguise? Bluff? Craft Clothing/costume?
disguise check
also, relevant
Well... it is actually hiding a hand. Sleight of hand seems kind of appropriate.
Well... it is actually hiding a hand. Sleight of hand seems kind of appropriate.
disguise check makes more sense though, you're trying to appear as a normal individual of your race, sex and size.
I've always pictured having a vestigial arm like being Cable, wait it's not cable… its a character from another comic that's almost like cable so much i get them confused… stryker or something like that?
Dont hide the arm! SHOW it OFF!
Yeah, Disguise seems like the best choice to me.
Or BLUFF!!
(I just had a vision of Kung Fu Panda saying… huh? what? what third arm? Oh thats not a third arm, don't be silly, who has a third arm? that's just weird!")
Many of the action you will be performing will involve sleight of hand to perform. Palming cards, stealing items, picking pockets, passing items to a friend. Beyond that Disguise will allow you to hide your abnormal physicalities from those who might casually search you.
I have no exact idea, but I think sleeves of many garments will help you!
Or garments of many sleeves.