I was in the airport sitting on the dry, clean, marble floor with the charger plugged in the wall that I was leaning against. Also dry and clean. I had my phone plugged into the Surface charging via USB and head phones listening to music from the Surface. I was sitting cross-legged and the tablet edge was shocking me with quit a bit of force. It hurt. I was surprised it had that much power! I checked to make sure all the wires had no cracks or bare wire showing, nothing. All looked brand new. I was getting shocked around my wrists. My wrists (both sides but strongest on my right) was touching the edge of the Surface at the same time I was holding it with my hands around the top corners. I couldn't figure out how it was working. The Surface itself showed no performance issues. I was listening to music and working on an Excel sheet. Anyone else have this?