Static electricity can affect ones CDP,DAc or transport. Or any device with micro processing.
What to do ? take a 10GA wire and attach to ground of receptacle either at the screw for the cover plate or with a banana plug into the ground hole of the receptacle.
Just touch the wire before touching any component. No more little shocks. Gone.
If one desires there are grounded matts to be had [ Edmund Scientific ] for the intense.
charles