my thoughts exactly, put the transformer, capacitors, diodes, contacts and lockable killswitch all on the far side of a box mod from the threading. It would have more use than a taser cell phone, considering we can certainly have custom 3 cell box mods running a hell of a lot more than your average cell phone's 3.7v (let alone whatever pitiful crap one could cram in a lipstick case). Totally seperate circuit from the vape side. Found a youtube vid showing a simple taser circuit and I'm pretty sure this is very doable. Maybe a pull-pin to physically block a slide switch for safety? The circuit I found is for a standard 9v, and I'm not sure of the math required to make it work with 11.1v, also not sure if the difference in amp rating would require more change in the circuit. I'm sure someone more electronically inclined is around here though. ;p Also wondering if i'm talking about your average amazon taser that just hurts a lot here, or something that could actually drop someone like a $1000+ Taser brand.