A man stabbed his pet dog while claiming to be God and threatening to kill police officers.
Martin Stewart, 32, had joined his girlfriend Kelly Steedman, 31, for an NHS clap for carers.
But she later woke to discover he had put pet Labrador Fergus in a headlock before hanging it from a door handle.
Ms Steedman fled the property in Strathaven and dialled 999, but watched in horror as Stewart used a kitchen knife to twice stab the dog. She then tried to wrestle the weapon from him, but he then stabbed himself in the neck.
Stewart, who had been in a relationship with the terrified woman for 10 years, told her she was the 'Queen of Scotland' and believed that 'the world was going to end in two days'.
Police arrived but were confronted by a naked and blood-soaked Stewart who shouted 'I'm going to kill you' and 'I'm going to end the world'.
Stewart appeared at Hamilton Sheriff Court and admitted threatening and abusive behaviour, causing the dog unnecessary suffering and assault in May last year.
A psychiatric assessment confirmed he was fit to plead guilty.
Depute fiscal Jennifer Cunningham said: "On the day libelled both parties retired to bed after being outside for the NHS clap and were in the company of pet dog Fergus.
"Both the accused and the complainer fell asleep and at some point she woke up and went downstairs.
"While she was downstairs she heard a squealing noise and ran back upstairs and found the accused with the pet dog in a headlock.
"He was applying pressure to the dog's neck and described the dog's eyes as rolling to the back of its head.
"She attempted to pull the dog away from the accused and break his grip.
"The dog ran from the room but she was unable to calm the accused who ran downstairs and put a dog chain around its neck and tied the other end on the handle of the front door.
"He then pulled the chain to the ground resulting in the dog being lifted off the ground and suspended by its neck.
"The witness placed her arms under the dog in a bid to release the pressure while screaming for him to stop what he was doing and noted the dog was choking."
Miss Cunningham added: "She opened the door and went outside to phone 999, but saw the accused with a kitchen knife stab the dog twice in the abdomen.
"The witness intervened and attempted to wrestle the knife from the accused but the accused then stabbed himself in the neck."
The prosecutor also told how when police arrived Stewart told them 'I'm God. I'm being commanded to kill you, you have come here to die demon' before making threats and lashing out at them.
The couple are back together and Fergus survived his ordeal after vets gave him emergency treatment.
Stewart became visibly upset in the dock as details of his case were read out in court.
Sheriff Thomas Millar deferred sentence on the first offender until next month and continued bail.
Charges he had obstructed police officers and was in possession of cannabis were dropped by prosecutors.
