In evidence, Emma Way said she knew the stretch of the road in Rockland All Saints well and claimed it was the cyclist who was on her side of the road.
After striking him, she saw in her mirror that he was ok and drove on. She estimated her speed to be 15 to 20 miles per hour.
Asked by her solicitor on a scale of 1 to 10 about how stupid it was to tweet about the incident, she said 11.
She admitted it was the biggest regret of her life.
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Staff have been the victim of online trolling. A petition against the use of animal fat in £5 notes was started by a man from Keswick.