A THUG brutally slashed his ex-lover and her boyfriend – after flying into a rage over a phone charger.

Derek Hunter pounced on Michelle Graham and Paul Kane as they lay in bed at a friend’s flat in Clydebank last September.

A judge heard how the terrified couple were left scarred for life after being struck with a Stanley knife.

Hunter today admitted assaulting the victims to their permanent disfigurement.

The 39-year-old – who already had a lengthy history of violence – was remanded in custody pending sentencing next month.

Hunter – who lived downstairs – was already there when they arrived.

The court heard Mr Kane was known by the nickname Benbo.

Hunter yelled through the letterbox: “If I don't get my charger, Benbo is going to get done.”

The woman who lived there opened the door before the thug pushed past and stormed in.

He pulled a Stanley knife from his pocket, went into the room where the couple were and leapt onto the bed.

Hunter screamed: “See you Benbo, I’ve f****** had enough of you.”

The bleeding victims ended up in hospital with Mr Kane suffering three slash wounds.

One at his stomach area was described as “deep”.

Miss Graham was also treated for wound on her thigh.

Hunter was identified as the culprit, but he initially could not be found. It was days later that he handed himself into police.

Sentencing was deferred for reports.