In "Silverfinger", Scott's father shows up, demanding Scott give him an explanation for why he and Kira were in his office. Scott tells him off.
Scott: You need to leave.
Agent McCall: I will, with a satisfactory explanation.
Scott: Go get a warrant.
Agent McCall: I don't need a warrant, I'm your father.
Scott: No, you're a gene donor. I got my hair color from you, and that's all I got. So you don't get to play tough dad with me.