Hapless Kyle Iveson, 24, burst into a convenience shop brandishing a twelve inch knife and demanded cash.<br /><br />He immediately realised the terrified shop worker was his former mum-in-law Karen Brown - so changed his VOICE as he asked for money.<br /><br />Iveson fled with £650 but Karen, the mum of his ex partner and the grandmother of his daughter, rang police and reported him.<br /><br />He was jailed after pleading guilty to the robbery and for being in possession of a bladed article at the Thoroughgoods shop in Clitheroe, Lancs.
