To clarify, the IMMINENT DEATH possibility is also true, in the case of diabetic ketoacidosis, which is caused from lack of insulin. Yes, if it came to it, you could use Walmart's NPH/R to avoid DKA, but then you put yourself at a higher risk of severe hypoglycemia (extreme low blood sugar) due to the way those insulins work, which can also result in imminent death.
My comment previously was referring to the best case, where you only lose some toes or a foot in a decade or two.
My comment previously was referring to the best case, where you only lose some toes or a foot in a decade or two.