Fajar did the most normal and common thing one would do upon receiving a piece of tooth; not throw it away, but violently let go of it. The only difference was that this piece of tooth was inside a metal box, and also, therefore, protected by it.
The tooth didn't even fly away from the box at all as it hit the ground, almost like it was soldered to it. Fajar wanted to kick it away, but something inside him made him stop. The only thing he could really do was stare at it, squinting more and more by the second.
And when his brain was finally able to process what had actually happened, and what was happening, a loud, almost screaming gasp escaped from his throat.
He quickly turned around, not even closing the door behind him, as he decided to run back to his room, practically pushing away every furniture in his path and even those that were just a tiny bit out of reach just to reach his room faster.