Kyle Ravenscroft, 18, sent a series of frightening text messages to a teenage girl, insisting that he was "in the grounds" of her Chester house and was "watching her".
Things became even more chilling when he threatened to hang himself outside her bedroom window so she would wake up and find his body.
She was so frightened by the messages she decided to sleep in her mum's room, as her bedroom was on the ground floor.
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Just before she fell asleep, at just after midnight, he sent her a terrifying text reading "I'm in your house".
His terrified 16-year-old victim, who cannot be identified for legal reasons, searched her bedroom the following morning, feeling as if she was being watched.
She then discovered Ravescroft hiding under her bed - and was told he had been there all night.
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Moments later, her mum came into the room and spotted him. She yelled at him to leave but before he did he stole the girl's phone, which police say he used to 'discover personal details about her life'.
Ravenscroft was spared an immediate jail sentence, despite urges describing the incident as "psychologically harming".
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He has, however, been sentenced to 80 hours of unpaid work, will pay £100 compensation to his victim and will attend a 'building better relationships' course.
He has also been sentenced to 12 weeks behind bars, suspended for two years, as well as a supervision order.