A woman who wore high heels sparked a huge armed response
Emma Ryan, 36, erupted in fury during an argument with her boyfriend and ended up waiving the pretend pistol at frightened officers during a tense four-hour stand-off.
She has now been jailed for six months over the incident which left neighbours terrified and ran-up a massive emergency response bill costing tens of thousands of pounds.
Residents in Portland Place, Grimsby, were forced to stay in their own houses while armed officers trained their rifles on Ryan's home after she barricaded herself in and refused to surrender having initially been spotted stalking the street with the weapon.
A cordon was also thrown around the neighbourhood – a pretty and normally quiet street – with other residents and passers-by told to keep their distance and avoid being "in the line of fire".
Residents close to the two-storey property were ordered to stay indoors and away from windows by police as the siege began at 1pm on Saturday October 8 last year.
It is understood Ryan was still dressed from the previous night when she ran into the street.
Emma Ryan erupted in fury during an argument with her boyfriend
To be honest Emma had always been nice to speak to in the street and would always wave to me
After the lengthy stand-off – during which a force helicopter hovered overhead – trained negotiators finally persuaded her to come out with her arms up.
Alongside the armed response team from Humberside Police the emergency response also involved four ambulance teams, some of them from a specialist incident unit with East Midlands Ambulance Service dispatched from Mansfield.
Ryan had denied possessing an imitation firearm, an airgun, with intent to cause fear of violence on October 8 but was convicted by a jury after a trial.
She admitted possessing an imitation black ball-bearing gun and damaging windows by firing pellets on October 7 and 8.
Although she was given a six-month prison sentence, she is expected to be released shortly because of time she had spent in custody on remand after her bail was revoked on December 22.
She represented herself during the trial at Grimsby Crown Court before the jury swiftly returned a guilty verdict on Thursday.
Yesterday a neighbour told how Ryan had been arguing with her partner before bursting into the street brandishing the weapon.
The neighbour, who wished to remain anonymous, said: "To be honest Emma had always been nice to speak to in the street and would always wave to me.
"It [the incident] was something to do with her partner – I don't like to gossip but it had been brewing for a long time.
She has now been jailed for six months over the incident which left neighbours terrified
"She was still dressed up from the night before by the looks of it and grabbed the gun when an argument got nasty.
"It's a nice street and nothing ever, ever, ever happens like that at all.
"I didn't know she was jailed, but I guess that what happens when you have a gun."
Temporary Det Con Tom Kelly said: "Her actions meant that resources were unavailable for deployment to other incidents and this could have led to victims of crime not getting the support they required.
"I hope she is ashamed of her actions and that the sentence acts as a deterrent to anyone else behaving in such an irresponsible way."