A desperate son was so outraged by his parents' marriage breakdown he rammed a gun into the mouth of his dad's new lover.
Joseph Sandic was with his heartbroken mum when they sought out Vicky Morgan at the Bristol House Hotel in Weston-super-Mare.
The 22-year-old cage fighter was recorded on CCTV as he entered the bar at 9.30am to challenge Miss Morgan.
Sandic pulled a fake pistol and put it into her mouth before pushing the victim, striking her and stamping on her foot.
The incident was triggered when Sandic discovered his parents' marriage had ended because his dad was having an affair.