If trolling children was a sport, Jimmy Kimmel would dominate the international circuit. Having parents pretend to eat their kids' Halloween candy wasn't a cruel enough prank, so Kimmel's back for Christmas and he's using a fake lie detector to get kids to admit whether they should be on Santa's "naughty" list or on his "nice" one.

The first installment of the series has 6-year-old Fletcher and his younger brother Sammy snitching on each other for tackling and biting. Because nothing says "Happy holidays!" like tricking todlers into ratting each other out for a Tonka truck.

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