I often get asked "is your sugar bad like your mom's was?" Therefore, I think to be a "bad" diabetic would be totally ignoring your disease and having tons of complications because of it.
Generally, I respond with an "i'm doing well, thanks" and leave it at that. I don't have time or inclination to educate those who don't really care to learn. If they wanted to learn, they'd use a different term than "bad diabetic."
When I hear this, I have this mental picture of me at the table with a plate of mac and cheese, mashed potatoes, yeast rolls and birthday cake with ice cream, with someone standing over me with a rolled up newspaper saying "BAD BAD diabetic!"
