I lost this blitz game in the silliest fashion: 1. e4 c5 2. Qh5 d6 3. Bc4...... and here's the thing. I had played d6 intending g6! to eliminate the threat of the opponent's queen. However I forgot somehow and played Nf6? instead. I resigned immediately afterwards. The worst part is, this was not even a lost position yet. If we were GM's it could be considered such due to the free pawn but if reasonable play continued the advantage of white would not have been decisive until many many moves later:
Of course this demonstrates the inherent versatility of the sicilian opening even after a blunder like I made on the 3rd move! However, I probably would not have made it past 18 moves after it, because I likely would have made more blunders under time-pressure and after the disappointment of making my first so early on.