A thug who remained silent as he brutally tried to kill a man in his own home has been jailed for six years and eight months.
Christopher Simpson left Darren Martin with more than 20 injuries after repeatedly stabbing him at the flat in Castlemilk.
The 34-year-old carried out the unprovoked attack after asking the victim for a glass of water.
Simpson pled guilty to an attempted murder charge at the High Court in Glasgow.
Judge Sean Murphy QC told him at sentencing that he is "risk to public safety."
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He added: "You have pled guilty to an extremely serious charge.
"This involved multiple stabbings to the victim.
"You have five previous convictions for assault - one of which resulted in 20 months in custody.
"This was a sustained attack on the victim who sustained 20 blows while you were armed with a knife.
"This could have had far greater consequences."
Simpson was also put under supervision for four years upon his release from prison.
Prosecutor Colin Edward told an earlier hearing that Mr Martin had met Simpson before and allowed him into his flat on August 20, 2020.
The victim later refused to drink alcohol with Simpson and asked him to leave.
The thug then asked for some water before he left.
But, Mr Edward went on: "As Mr Martin stood at the sink, Simpson stabbed him twice.
"He then repeatedly stabbed him on the head, neck, body and arm.
"Mr Martin believed it was with scissors or a knife that he had hidden."
The terrified victim begged him to stop adding: "You are going to kill me."
But, Simpson ignored him, put the man in a headlock and carried on with the assault.
Mr Edward: "Simpson did not say a word throughout."
Simpson eventually stopped and the bleeding victim broke free.
The court heard he suffered a series of wounds including to his chest and abdomen.
Mr Martin had a punctured lung and also needed a blood transfusion.
He remains affected by his ordeal and has limited movement in his arm.
Mark Moir QC, defending, told the sentencing: "He accepts he did not act in self-defence but he says there was an issue over debts.
"He fully accepts there was no justification for the actions he took.
"He expresses his remorse and regret for his actions, and it could have been even worse."
