It seems that I've got years of experience with third generation haptic technology then. If you plugin a laptop into an outlet that is not properly grounded an

It seems that I've got years of experience with third generation haptic technology then. If you plugin a laptop into an outlet that is not properly grounded and move your fingers across metal surfaces of the thing, one can experience it first hand. A sensation of friction, like moving your fingers over ripples because of the current running through them. This should work with a lot of electrical appliances that have metal surfaces. Not really pleasant though :)