[There's something familiar about the structure of this interaction, and, perhaps strangely, Keiichi's response to being called a dumbass is to laugh.]

Hey, take this seriously, I'm trusting you with my secret here! My dark past as a... [He struggles, searching the empty corners of his brain for something, anything. Unfortunately, the illusory bugs must've taken everything the desert winds didn't blow clean out of his skull.] As a yakuza? Yeah. My sordid history as a member of a criminal organization.

[He nods, decisively, and then immediately regrets it. There was too much decision in the nod, agitating the lacerations.]