Citizen: Socrates, you are really annoying.
Socrates: Interesting argument. Can you tell me what is ‘annoying’?
Citizen: The way you ask all these stupid questions, that’s annoying.
Socrates: Would you say that a fly buzzing by your ear is also annoying?
Citizen: Yes, I would say that is annoying.
Socrates: But you define annoyance as asking questions, and a fly doesn’t ask questions, so do you really know what annoyance is?
Citizen: I guess I don’t know how to explain it.
Socrates: If you don’t know what annoyance really is well enough to explain it, how can you be certain, then, that I am annoying?
Citizen: I am going to scream