@ladyupnorth – I always get a bit of a kick out of disabusing people of that notion! No, I’m not fat now, and nor was I, my diabetes is COMPLETELY unrelated to the amount of sweets I used to eat.
Of course, I’ll look a right fool if I develop type 2 now, but there we go, I’d have to take it, as I can’t get away with claiming ignorance of the dangers! 
One, not so funny, instance is a mates friend who apparently ignores his control of T1 completely! 
BGs regularly over 20… Makes me glad I don’t know him, or I’d be kicking his arse on a regular basis!