Is your dog a liar? This 'lie detector collar' could keep your pet honest

It's been revealed how many dogs are guilty of tricking their families, with 76 per cent of owners admitting to refilling the dinner bowl. Pedigree has come up with a 'lie detector collar' the company claims will keep your pet honest. It monitors activity and calorie burn, helping owners determine if their pet’s hunger is genuine or just a trick.