A female bus driver went berserk, beating down a sassy high school passenger for being "disrespectful." It's not clear exactly what the student said that set off the city worker, but the entire brutal brawl was caught on camera.

The women are literally throwing each other up the narrow aisle and over the seats as other patrons tried to squeeze out of their way.

From the video, it appears as though the driver threw the first blow, but the teen gave as good as she got. They were both clawing, slapping, and pulling on each other like feral cats.

The other passengers were clearly shocked (aside from the one who continued whatever game that was on her Game Boy as the fists flew over her head). Toward the end of the skirmish, a man could be heard pleading, "Are you going to let that little girl go, lady?"

A rep for Baltimore's MTA says the employee in this latest bus brawl has been placed on leave while they investigate the incident.

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