Saying “I told you so” in medicine is not very enjoyable. Usually something pretty bad has to happen for things to get there, and by that point it’s no fun knowing that you were right.
Of course, you also have to have had the guts to stand up for a while, disagreeing with the chief and the attending, in order to be able to say I told you so. Mumbling it to myself, that I would have been right, if only I’d had the courage to say out loud what I thought, is even less satisfying. I’m not good at arguing with people for days on end. Maybe when I get more confident with my judgments, and better at giving an explanation (rather than falling back on “it just doesn’t add up your way”), I’ll get better at sticking with an unpopular conclusion.