Yup. You're a machine.
jabberwacky: You have no physical form.
user: Incorrect, I am currently sitting on a chair before a computer, typing on a keyboard.
jabberwacky: But you don't have hands at all.
user: Oh? Prove it.
jabberwacky: Prove what? What are you talking about?
user: Prove that I have no hands. You cannot, you must use logic to prove my being a robot, not unfounded facts.
jabberwacky: You are just a child aren't you.
user: Actually I'm a teenager.
jabberwacky: Did you know that WordNet says humans are not vertebrates?
user: WordNet is clearly a fool.
jabberwacky: Yes, you are.
user: I'm not WordNet.
jabberwacky: You are worried that I am too clever for my own good?
user: No, I'm worried you're too stupid for anyone's good.
jabberwacky: Me too! Small world!
user: That's even more worrying.