Eddy was explaining something to Prior, some crucial point in the architecture of one of his scams. She knew how to tune the content out, but the tone still got to her, like he knew people wouldn't be able to grasp the gimmick he was so proud of, so he was taking it slow and easy, like he was talking to a little kid, and he'd keep his voice low to sound patient. It didn't seem to bother Prior, but then it seemed to Mona that Prior didn't much give a shit what Eddy said.