γιγνώσκω ἃ πάσχετε

From LSJ

ἀπομυξάμενος, ὦ Δῆμέ, μου πρὸς τὴν κεφαλὴν ἀποψῶ → blow your nose, Demos, and wipe your hand on my head

Source

Greek > English (Woodhouse)

I understand your feeling