Charlotte Katie Unwin, 23, was twice given a chance to stay out of jail for the late-night street attack, York Crown Court heard.
But now she is behind bars after the probation service twice sent her back to court for not carrying out Judge Simon Hickey’s order.
“I view your excuses with some scepticism,” the judge told her. “In my judgement it is not unjust to impose an immediate custodial sentence.
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