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Here’s a video that should be a warning not to provoke the wrong person—even the quiet ones have their limit.

This bully just doesn’t learn when to quit. She follows the poor girl down the hallway, poking and prodding and blocking her path, as the girl just tries to get away.

RELATED: This guy made the wrong girl mad, you won’t believe what she KO’s him with

Finally, after the bully grabs her and flings her into the lockers, she goes off.

And just when it’s apparent she’s winning the fight, another girl jumps in the mix. But it doesn’t stop this quiet badass from taking on both of them.

She certainly holds her own until the adults come to break up the party.