How many glasses you have broken?
Throwing rocks on the windows around your neighborhood, just to piss off someone or you were pissed off yourself.
Smashing those empty bottles at the end of a night, when you were young but your dreams were big.
Breaking mirrors when you saw nothing but reality, your true self.
You may have done all or one of the above. Those shattered pieces of glass, no matter in what form they were, worth nothing now.
They worth nothing back then also. But they faced your anger, disappointment or frustration.