This father came up with an ingenious way of making his stroppy son take his medicine - hiding it inside a carton of fruit juice. Chaikorn Saibri, 30, tried to give his son Tonwat the cough medicine but the toddler refused. So while the 18-month-old boy was in the car outside his home in Bangkok, Thailand, Chaikorn hid the medicine inside an empty carton.Footage take in the morning on July 23 shows little Tonwat happily sipping from the straw. Chaikorn said: ''My boy is smart but nobody's as clever as daddy. I had to cut out a hole in the juice carton and put the medicine bottle inside. He though he was drinking fruit juice.''