EDIT: I should add, if I got diabetes and had to take insulin, I would be pissed to the point that I'd make it my sole goal in life to find a way to live without having to take insulin.
To me, it is absolutely infuriating that I can be required to take a drug just to live. I fully understand this stuff works great for people - by all means use them! For me? I'd rather get sick and fail than live with it forever.
(Yes, I'm irrational, excessively autistically stubborn, and all the other negative things you're thinking about me. :)