A learner driver struck her instructor with an iPad and nearly drove into another car after fearing she had failed her test in Dubai.
The woman, 30, flew into a rage after her instructor was forced to hit the brakes when she made a mistake on the road, a court heard.
The student driver, from Sudan, accused the instructor of deliberately failing her and said she would now "drive as she pleases".
She then tried to mount a pavement and was about to hit another car when the instructor grabbed hold of the wheel to steer the vehicle to safety.
Court records show that on November 9, the defendant was one of three people being tested for their licence.
The two other learners were terrified by their ordeal, and the instructor sustained bruises from the assault.
"She started screaming and accusing me of failing her deliberately and said that since she had failed, she will drive as she pleases. I told her it's not true and asked her to continue her test but she wouldn't listen," said the Emirati instructor, 33.
She said that the accused was speeding and drove recklessly on a busy road in Al Quoz Industrial Area, while screaming "I will show you what I will do".
"I asked her to turn off the engine. She refused and when I tried to do so, she hit me on the hand and thigh with the test results iPad," said the instructor, who managed to stop the car and force the student from the driving seat.
The accused tried to flee in a taxi but the instructor stopped her.
"She wouldn't get into the car again and walked back to the driving institute," said the instructor, who called police.
The student was charged with endangering lives and assaulting a Roads and Transports Authority employee, which she denied at Dubai Court of Misdemeanours.
A video recording from the camera inside the car showed the student driving recklessly.
She was convicted of the charges and given a one-month suspended prison sentence.