If they have done research already - good. Then I do like your "drunk tank" idea, although I also agree with the "needs to be thought through carefully to avoid problems with abuse" also. Oh, and just to be clear - I live in the US, where EVERY ambulance ride is at least a $75 charge, no matter WHO calls for the ambulance. And I drive myself to the hospital, have done while having a gall-bladder attack when pregnant, for a cardiac event that required a 3-day hospital stay, and when I had the pulmonary embolism and deep veinous thrombosis. Because I couldn't afford the ambulance bill on top of the hospital and doctor bills.