[Javert grasps the helping hand with an intent stare and plucks the key from her fingers. He'll be holding on to that--and the handcuff, while he's at it.]

Yes, I am a very dull fellow, indeed.

[The impassivity and intensity drops instantaneously, a smirk pulling his lips taut. Javert releases her and shakes out his hand and wrist, rubbing the smarting flesh tenderly. He bends closer to her, his voice lowering conspiratorially,]

I believe I will have a cramp in this arm for the rest of the day. Now, I saw it is very clean in here. I hope you have not hidden all of my clothing from me. I would prefer to go to work dressed, rather.