Why did he just pretend he was a robot?

I remember he did try to say he wasn't at one point but got cut off or smthn and Ig he was like oh forget about it LMAO. Also wouldnt have doubted the guy kicking him out if he found out too soon he was a human anyway. Maybe he was like "on second thought I wnat to stay as long as possible" and kept shut about not being a robot henceforth.