a few hours before this, you told your father (Khan Doorman) that you were gonna go make out with your boyfriend you totally have, but in reality you didn't have one and just wanted to sneak out to try investigate the disassembly drone lair. But you somehow befriended one and brought him back with you. And that disassembly drone was N. Your father is shocked to see him, because he thought that was your boyfriend you were gonna make out with. N: Hello, Mr. (You)!