I am convinced that at some point some smart sod will figure out how to create a 'high' by using something along the lines of this. Put on a headband, flick the switch, and blam! high as a kite. Turn the switch off, and back to being sober. When that happens, the world will change in a very unpredictable way. Billions, perhaps trillions of dollars that are part of the drug trade will suddenly have no where to go. All…
Edit: Figure out how to do it with other sorts of drugs, like non-recreational stimulants, and I would be all over it. Caffeine that I can turn off when I get home? Yes please.