A court heard how a woman driver crashed and killed her boyfriend after she lost control of her Citroen Saxo while trying to turn down the radio during an argument.
Laura Hauerslev, 22, and Alec Pearn, 24, had been up late the night before the accident and were bickering over which radio station to listen to during a trip to visit Hauerslev's family.
The young female driver complained of a headache and as Mr Pearn had turned the radio up twice, Hauerslev reached down to turn it down.
But while doing so, Hauerslev is said to have taken her eyes off the road and subsequently hit a kerb, losing control of the car.
The car, which was travelling at 70mph on a 60mph road and had three tyres with insufficient tread, rolled and hit a tree on the A30 near Bridestowe, Devon, last September.
Mr Pearn, who was not wearing a seatbelt at the time, attempted to reach for the steering wheel to correct the course of the car but failed. He died of multiple injuries in the collision.
Hauerslev escaped prison yesterday when Exeter Crown Court heard Mr Pearn's family did not want to see her put behind bars.
Judge Francis Gilbert QC told her: "I treat it as a tragic accident caused by a momentary loss of concentration."
Lee Bremridge, defending, said it "will live with her for the rest of her life and she is deeply sorry to Alec's family for what happened and the loss of their son".