The one I have heard from the greates number of people is “You got diabetes because you ate too many sweets” or ………. too much chocolate.
I hardly ever ate any sweets as a child – aged 10 my parents stopped buying me Easter eggs as in October I had only eaten half of one and had about 8 unopened still !
In fact, I can honestly say that since being diagnosed with Type 1 my chocolate consumption has increased – as an aside why does most diabetic chocolate taste so dreadful ? (apart from Thorntons that is)