Apologies from my absence from the library. I got put on custodial duty. [His way of explaining anyone who might have spotted him cleaning the third floor.]
[Inmate filter]
I need painkillers. Anything you've got which might work. Someone out there must have something like that, surely.
I'm prepared to trade for them.
[Long pause, as he realises 'anything you've got' is a bad idea.]
Not as-prin. [He says the word like it's a bizarre, foreign concoction.]