Things that never happen (until they do)

A lot of coaching/teaching books have the classic endgame example of 3 pawns v 3 pawns, where the central pawn push is the only move that wins. For this to work of course, both kings have to be on the far side of the board, otherwise the idea doesn't work. And the situation never occurs anyway, as one side or the other pushes a pawn to prevent this exact situation from occurring.
 Or so I thought, at least until this evening.
White had been winning the diagrammed position for quite a while, and the obvious idea was to give up the c pawn to win the kingside pawns. However it appears that while Black was aware of how to force a passed pawn on the kingside, White was not. So Black took his only chance in the position, and crossed his fingers.

1...g4 2.hxg4 f4 3.gxf4 h4 Now even here White is still winning but Black's luck held out, as White did not run for the kingside but instead blindly pushed on 4.c6 h3 5.c7 Kd7 6.g5 h2 7.c8Q+ Kxc8 8.g6 h1Q 9.g7 Qh7 0-1