Lost Tooth

The other day, I opened a gym locker and found a white tooth-like object in the top shelfy section. The reason for its tooth-likeness was that it was in fact a tooth. Bit of dried blood and everything. Who leaves a tooth in the top shelfy thing of a locker? That was the first thought that came to me. Next I thought about poor hygiene because there hadn't been a locker room fight in the gym for I don't know how long. And finally, I thought about how weird teeth are. They're like disposable bones. No one drops a femur and discards it on the top shelfy section of a locker.