A person that does not have Diabetes – Symptoms of Type Zero include vastly stupid questioning of people with Diabetes, inability to distinguish between Type 1 and Type 2 Diabetes and making wild assumptions on what people with Diabetes can and can’t do, or eat. Severe Type Zeros will often encounter sudden pain in the jaw area. This is caused by getting punched in the mouth by an offended person with Diabetes.
Typical Type Zero comment "Oh. I know a diabetic. They have the Bad version".
A Metro D typical carries a Man Bag with him 24 hours a day to ensure that all the equipment he requires to manage his Diabetes is with him all of the time. Simply carrying everything in his pockets, or a rucksack is not deemed to be Cosmopolitan enough for a Metro D.