Here is a game from the 2009 Foxwoods Open, FM Mandizha - IM Robson with full annotations and commentary:
In this game we see the Black player choose the very sharp anti-Moscow gambit against his much lower rated opponent. This was done in hopes of reaping great rewards. But instead the tables were turned and Black soon found himself in a hopeless position after incorrectly playing once White initiated a spectacular sacrifice.
So from this game we must learn that choosing a sharp opening is just as dangerous as it is rewarding. So when you think about your opening choose wisely as you never know when the tables will be turned.