Greek PhD

A doctor sees a patient in his clinic who needed stitches in his hand. The doctor takes the man in and stitches his hand up, and the two make small talk, and man learns that the doctor actually attended medical school and got his PhD in Greece. The man's hand becomes infected in a few days because the stitching was done incorrectly. When he goes back to the clinic to get it fixed, the doctor says he doesn't know how. The man asks him how he can be a doctor but not know how to fix this problem and the doctor says he never fully became a doctor. The man, livid now, screams at him "You said you got your PhD!" The doctor replies to the man, "yes, I am a Phailed Doctor"