Here's an unusal query.
In common with many of the early (Platinum) models of the G4 Powerbook, the
plating has worn off the front corners of the bottom half of my laptop. This
afternoon, typing with my arms bare, I noticed little 'buzzes' of what seem
to be electric shocks as the underside of my arm (the tender bit about 2
inches below the wrist!) touuched those corners. Touching them with a
fingertip has no effect, I imagine because the skin is relatively thick
there. The effect persists if I unplug the machine from the mains and
continue on battery ...