A mum-of-two who was high on cocaine was caught on CCTV footage as she stormed into a Co-op store while brandishing a knife.
Laura Nicholas, 26, was in pursuit of her ex-boyfriend, Paul Loose, who she accused of ruining her life as she pointed the five-inch blade at him.
Mr Loose, who can be seen in the video wearing only a pair of shorts, managed to get past her and out of the door, before barging back in and kicking 26-year-old Nicholas to the floor and taking things off the shelves to throw at her.
Moments later, another customer comes into the shop and takes the knife off Nicholas, placing it on the counter, reports North Wales Live.
The shop supervisor told the court how, after the incident was over, she found several shoppers cowering behind shelves in fear.
But the drama did not end there, as Nicholas returned, armed herself with the knife again and began walking around the store.
Witnesses described her prowling around the aisles like a “caged animal”.
At Mold Crown Court, Nicholas was told she had left innocent people terrified.
Judge Rhys Rowlands said: “This is a very, very serious incident. It would have been a terrifying spectacle for anybody who witnessed it.”
Sion ap Mihangel, prosecuting the case, read out a statement from the shop supervisor, who said she had been unable to sleep and had to take time off work.
Judge Rowlands added: “Those who take knives on the streets with them are likely to go to prison, despite their background.
“I agree with [the store’s supervisor] that you were behaving like a caged animal.
“This was a truly terrifying incident.”
Defending barrister Andrew Green said Nicholas took responsibility for the incident, on the evening of April 21, in the shop on the street where she lived.
He said it “reflected a chaotic period in her life” as a result of “abusing alcohol and drugs”.
He said she “takes responsibility for what she has done” but recognised it was a “serious incident”.
Judge Rowlands sentenced her to 16 months in prison and also imposed a restraining order stopping her from visiting the Co-op store in Queen Street, Leeswood, for the next three years.
Nicholas was given a 12 month community order in March last year after assaulting two police officers.