A battling gran attacked her rival's mobility scooter and threatened to carry out a mass killing.
Bigoted pensioner Elaine MacDonald, 65, tried to tear the electric scooter apart with her bare hands and dragged the 100 kg machine along the street.
At Perth Sheriff Court, MacDonald also admitted calling the police on 999 and making racist and violent threats to phone operators.
She admitted calling the police on 21 May to utter threats of violence and make racist remarks and sentence was deferred for reports.
The court was told MacDonald had already been ordered to behave after previously admitting attacking an elderly rival over allegations about money.
MacDonald admitted dragging the woman's scooter off down the street and trying to rip off the attached wicker shopping basket.
The pensioner, who was drunk, also kicked the woman's door and banged her window while shouting that she would kill everyone inside.
Sheriff Pino di Emidio told MacDonald: "There is really no excuse for this type of behaviour, even if you think this person has done you a bad turn.
"Police officers should not be required to put up with this sort of thing."
The court was told that MacDonald, from Rattray, Perthshire, believed her rival had been exploiting her financially and wanted revenge.
Fiscal depute Shaun Maher said: "The accused began kicking and banging at the front door and window and was heard to shout 'two-faced bastard.'
"She was uttering threats to kill everyone in the address. They observed the accused pulling at her mobility scooter, pulling it along the pavement and making efforts to snap the wicker basket on the handlebars.
"They shouted at her to leave the scooter alone and this was met with a barrage of abuse and threats."
Police were called and shortly after they arrived, MacDonald returned to the scene and continued hurling abuse as she banged the living room window.
"Officers formed the view she was heavily under the influence. She was placed into the caged area of the police van. She preceded to kick the door, shout, swear and threaten officers."
Solicitor Steve Lafferty, defending, told the court that his client had an alcohol problem and had been upset by the death of her pet dog.
MacDonald admitted acting in a threatening or abusive manner in Hatton Place, Rattray, and in a police van on 22 June last year. Sentence in both cases was deferred yesterday for reports.
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