Despite himself, he managed the shadow of a smile, which he immediately hid by bowing his head.  
"I could use one or two, I guess.  Not as badly as I need to piss."
He felt very small and childish for having to ask, but it was easier for everybody than the alternative.  From now until the unforeseeable future he was essentially a prisoner.
Can't risk letting him go, can't risk ignoring his past.  He'd put them between a rock and an extremely hard place.  The only way out was to prove he was a reformed man or die somewhere along the way.
Such was life.
"Do you mind?" He asked, pointing to the front door.