@99lives(View Post) LIGH doesn't go through things, it more less goes behind them. It only does damage to the perimeter of elements on the screen; where there is space for LIGH to have an effect.
Take a large area of metal and surround only the edges with non-conductive wall. You will notice the lightning sparks the metal but it doesn't destroy it. This proves therocketeer's theory. (Or was it conductive wall after all?)