Quoted from Djshakes:
My head hurts from booze and this game. Again, competent fixer here, no clue where to start. Funny, that glass shattered into a million pieces. Safety glass. I once drop glass off a bar stools, nothing. This was barely a bump. No worries. I have extra sheets.
Here is a video of issue. Bridge rectifier?
» YouTube video
See. Where are those idiots in the other thread that claim that temp changes don't burst tempered glass? Told them many times backglass and playfield glass burst when you set it on concrete or have hot/cold hands when handling. Seen it happen many many times. Newbs don't believe.
On the plus side, at least it burst on the ground instead of as you are sliding it out of the game.