Tony Stark found out the hard way that even friends can't be trusted, when his business partner Obadiah Stane revealed he was funding terrorists (and building his own suit of armor). But Iron Man should have known he was up to no good long before. When Tony finds Stane playing some piano in his Malibu mansion, it's not a random bit of music, but a sample of Antonio Salieri's "Piano Concerto in C." Music buffs, or those who saw the movie Amadeus will get the hint, since Salieri was long rumored t...