Secret camera footage captures the moment a squabbling sibling laced his sister's milk with laxatives amid a furious bust-up over the inheritance of their family home.
Robert McCabe, 69, was caught red handed after his sister Sharon noticed a chemical smell in her milk and covertly recorded him.
He admitted adding laxatives to his sister's milk on two or three occasions over a two-week period after he was rumbled. At the beginning of the clip, McCabe can be seen crouching and tipping a substance into the bottle from a white piece of paper.
He folds the paper and puts it in his pocket, before screwing the lid back on the bottle and shaking it vigorously for 14 seconds.
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