This is an excellent idea.
I'm currently working on a programme that will send 0.5 giga watts up the arm of an ecig user if they have it in their hand for more than two hours.
Just a few technical problems, not the least being the size of the battery I need, and getting volunteers.
Margaret, in a very selfish way, refuses point blank to help me.
This, after I did the hoovering one day in 1987, I think it was a Friday.