An ex-boyfriend threatened to "blast" a young mum and make her a victim of "revenge porn".
Mark Lismore claimed his former partner caused him to lose his job by putting him under pressure to take days off to care for their son.
But when the nurse cut off contact with him after a heated argument, he returned and kicked at her front door while she and the child hid upstairs, before making vile threats via email and over the phone.
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Liverpool Crown Court heard Lismore, 31, of Gladstone Road, Seaforth, was convicted of criminal damage, which related to his ex - who the ECHO has chosen not to name - in June 2017.
He was handed a community order and an indefinite restraining order.
Peter Hussey, prosecuting, said the victim accepted in an attempt to "keep the peace" and make sure her son "had a father figure", she "nevertheless allowed the defendant to continue to contact her".
She said Lismore got a job, stopped behaving badly, and everything was fine.
But on Sunday, April 4 this year he turned up at her home to look after their son and when chatting was "abrupt and rude".
Mr Hussey said she "told him off about it" but he replied "f*** off" and when she said not to speak to her like that, "he reacted by shoving her to the chest with both hands, knocking her backwards and off balance".
The prosecutor said: "She said she cut the back of her head against the corner of a bin, which caused a cut."
Mr Hussey said the victim told him not to come around again, but a couple of days later, at around midday, he started banging on the door.
The prosecutor said she took their son and "hid upstairs", before Lismore kicked the front door, shouting "open the f***ing door now".
The court heard Lismore started texting and emailing his victim, and calling her when he sounded "very drunk".
In an email on May 11, he said: "Make sure you keep an eye out for me, next song you will f***ing love it, and the pictures I've got as well pure classics, remember the ones you sent me, be careful you f***ing wrong un, that's all I'm saying, ta ra."
Mr Hussey said the woman believed he was referring to intimate photos taken during their relationship.
He said: "She took that effectively as a threat of the offence of revenge porn."
The court heard Lismore called her the next day, accused her of having sexual relations with a man, and warned: "I'm going to get you."
In another phone call he told her: "I'm given your address to people, my workers we're going to run through your front door, I will show you I'm not playing games, you're getting it."
Lismore threatened in another call: "I'm going to burn your house down, I'm coming, I'm going to end your life, I will blast you, if you call the police I will kill you."
The mum gave screenshots of emails and missed calls to police, who arrested Lismore at his home, after he initially refused to let officers in and shouted: "F*** off."
He denied any wrongdoing when interviewed and in a trial, but was found guilty of harassment and breaching his restraining order.
His ex-partner said his "abuse" and threats made her constantly anxious.
In a victim statement, she said she was on medication for anxiety, couldn't sleep, missed shifts and found it difficult to work as a children's nurse due to his phone calls, and moved home.
She said: "I loved living in my old address, however, I didn't feel safe there, knowing he could turn up at any time."
Lismore has 14 previous convictions for 17 offences, including inflicting grievous bodily harm in 2009.
Kate Morley, defending, said at times the breach of the restraining order was "welcome" and Lismore's ex would call him to help with childcare.
She said: "All the danger signs were there. Mr Lismore describes their relationship as toxic - I'm sure the complainant would agree. But he succumbed into entering into a relationship of sorts."
Ms Morley said he did this "primarily for the sake of his son" and had got "the best job he had ever had" on the railways, and could provide for his son, but then "hit rock bottom".
She said: "I don't seek to put blame on the complainant but it is important to put the offence into context.
"At the time of the offences some pressure was put on Mr Lismore to look after his son, which in essence forced him to miss days from work and he was laid off."
Ms Morley said in a pre-sentence report Lismore said his victim had been "somewhat economical with the truth", but accepted while he was out of work and depressed, their relationship "turned toxic again".
She said he still had regular contact with his son by the victim dropping off the boy at Lismore's mum's address, and while he used "clumsy phrases and words to describe the complainant", he "only wants contact with his son, not with her".
Ms Morley said he had the offer of a job on railways in Kent and would travel home at weekends to see his son, so if jailed there would be a significant harmful impact on the child.
Recorder Richard Leiper, QC, said Lismore had a history of failing to comply with court orders and asked what was different now.
Ms Morley said Lismore had a "fantastic relationship" with his six-year-old son and didn't want to risk it.
Recorder Leiper told Lismore: "There can be no doubt your conduct was intended to maximise fear or distress."
He said: "Ultimately she has moved house in the hope of avoiding you."
The judge noted Lismore's conviction for grievous bodily harm was of "some age", but said: "It indicates that threats of violence from you cannot be easily disregarded."
Referring to his "poor compliance" with court orders, Recorder Leiper said: "I simply cannot take the leap of faith that would allow me to take your word that you've changed."
He jailed Lismore for 40 weeks.
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