I had a radiology attending in med school tell me that radiology and anesthesiology are the specialties that most people perceive as having the easiest life and work while in house, but that the opposite is true. Miss a little shadow on the mammogram, one of 20 that you read in the morning, you're looking at trouble. Same goes for CT's and rule out spinal films, etc. In anesthesia, kill a 4 year old for a routine, same day tonsillectomy or ear tubes and you're DONE. See ya. I'm just starting in anesthesia, but for my 60 or so hours a week I'm on when I'm there. No taking a break after rounds for coffee. Have to pee, you hold it. Both specialties survive and pay relatively high based on volume, volume, volume. That being said I love what I do.