What does Socrates do when he finds a man with a reputation for wisdom? What three classes of people does Socrates question? How does he find all three lacking?

Socrates will always question any man with a reputation for wisdom. He wanted he/she to examine his/her live and become aware of their own ignorance rather than thinking that they know things when actually they know nothing.

The three classes of people Socrates questioned were the politicians, Poets and craftsmen.

He found all three lacking in the real wisdom (Higher Things or Human Excellence) as they only possessed human wisdom in their respective trades.