Diabetics don't need to take insulin every 3 hours. Insulin is only needed if the patient's sugar is too high. Additionally, a diabetic diet does consist of a tiny amount of vegetables per meal. A diabetic diet is low carb and is not as unpleasant as Roz claims. Also, vegetables are not low carb, insulin shock does not make you "crazy" and insulin shock does not have to be treated by a doctor - all you need to do is eat some sugar.
Added information, it can cause erratic behavior. The person may well appear drunk, zoned out or the like. It is true a sugar fix will set things right, almost.always.