Revealing

The problem with medical practice is that you're not allowed to say "I told you so" to your patients. Well, I guess you could, but that would be poor form. And would also decrease your popularity.

A not-so-uncommon situation goes like this:
Me: If you leave the hospital without undergoing treatment XYZ, complication ABC is going to happen!

Patient: I don't care. You can't make me stay! You don't know anything about me. I'm leaving.

[Patient returns to hospital with complication ABC and in worse condition.]

Patient: [groans] Oooh doctor, you were right. I feel terrible. Fix me.