In 16 years doing A/E ambulance work I have only ever taken in three diabetic (due to hypo) patients. One was unreponsive to glucagon which was probaly masking an acute illness, and the others were alone at home and I did not feel it would be safe to leave them even though they had made a good recovery. (Training Officers cardinal rule..."always cover your arse...") It is always good to see the dramatic effect that glucagon has when minutes prior to the injection the patient was either totally unconscious or fighting mad or behaving bizzarely. The look on relatives or friends faces when they recover is satisfying. Hypos, in general, are easy to deal with.