Randy Johnston , 68 , from Texas , Dallas , decided to leave two 'fake feces ' on his granddaughters ' beds . His son then went about filming the moment of discovery . But footage shows that the prank turned out to be decidedly disastrous , with Randy 's six-year-old granddaughter Porter crying in horror . Randy , an attorney , told Daily Mail Online that he staged the prank in revenge for one his granddaughters pulled on him earlier in the day .
Randy Johnston , 68 , from Dallas , Texas , decided to leave two 'fake feces ' on his granddaughters ' beds . His son then went about filming the moment of discovery . But footage shows that the prank turned out to be decidedly disastrous , with Randy 's six-year-old granddaughter Porter crying in horror . Randy , an attorney , told Daily Mail Online that he staged the prank in revenge for one his granddaughters pulled on him earlier in the day .