Pancreatitis
I have a friend who was a monster drinker for years, huge quantities. I always thought he had an alcohol problem.
Anyway 9 years ago he landed in hospital with acute pancreatitis. It was touch and go but he recovered. He was told if he ever drank again it could kill him. I was amazed that he just stopped no AA nothing, he continues to go to his local and mix with friends today but is tea total. I asked him how he did it and all he said it can be a bit boring at times but he never considers drinking now.