"Great. Abra fucking cadabra, we have a deal." [It seemed to satiate him for now, and the inmate started examining the knife to ensure that it was something he could use well.

Satisfied after only a minute or two of playing, he slid it into his back pocket and gave Costigan a light flick of the head in acknowledgment that was not quite a nod.] "You better get going. Won't do wonders for my reputation if people notice you around here too often."