@Monkey:
Didn't Ruffy feel weak in the Kairoseki(sp?) cage that Crocodile had in that casino even when he wasn't touching it? And it's said that Kairoseki has the same effect as seawater? Are you sure you arn't thinking of drinking/sugar(?) water?
Or why would even a tiny piece of Kairoseki (like the end of Smokers stick) weaken Ruffy?
Monkey D. Ruffy
he felt weak at first because he was grabbing the bars of the cage, and then smoker hit him with his jutte which has the kairouseki tip but when he was just hanging around in the cage he was perfectly fine (sanji impression ftw)
edit: gah i took to long to post :S