A Warnbro man has been denied bail after he allegedly broke into his sister’s house and smacked her in the face before threatening to kill her ex-partner by chopping off his head. Stefan Shaun Lumia, 33, allegedly ended the tirade by yelling out that he did not care if he went back to jail for hurting the man and was “going to f...... kill him”. Police prosecutor Senior Sergeant Naomi Foster said on October 26 Mr Lumia forced open the double doors and security screen of his sister’s Warnbro house. Three “terrified” children were in the lounge room when Mr Lumia allegedly rushed towards the victim and hit her to the left side of her face, causing her to fall on the floor. A witness allegedly tried to intervene when Mr Lumia told her: “I’ll bash you too you c....” Sen. Sgt Foster said Mr Lumia allegedly began looking for his sister’s ex-partner in the house and yelled: “I don’t care if I go back to jail, I’m going to chop your head off.” Mr Lumia appeared in custody in Rockingham Magistrates Court on December 8 charged with common assault, threats to kill, aggravated burglary and criminal damage and destruction of property. Lawyer Aaron Plenderleith made a bail application for Mr Lumia, telling the court that strict bail conditions and frequent contact with the police would “act as a reminder” for him to behave. Sen. Sgt Foster opposed bail because the facts were “extremely serious” and occurred in front of young children. Magistrate Vivien Edwards noted that Mr Lumia had a number of prior driving offences and had breached suspended and intensive supervision orders in the past. She told Mr Plenderleith and Mr Lumia that home detention was the only bail option she was willing to consider. Mr Lumia was remanded to December 22 for a home detention report to be conducted.