The patient had a major abdominal surgery. One of the side effects, as the patient, is that you need time to recover and so you don’t get to eat. Well, you do get “astronaut” food but that isn’t so satisfying.
It was four days later and during a discussion with the surgeon that the patient was informed that she would now be able to have ½ liter of water. Not carbonated or anything crazy like that, just regular flat water. This is really not a fun diet no matter what the circumstances and so the patient asked if it was possible to replace the water with a coke.
Nope, that particular request was not approved by the surgeon, I guess he is an “old school” doctor.