If you could hook up a kid to a lie detector, how do you think they might react? How would they behave? If it was your kid – know what they’d do? Jimmy Kimmel decided to find out. But he wasn’t actually planning to interrogate the rugrats, he just wanted to mess with them!

He hooked some kids up to a fake lie detector (which amount to a few wires struck to a colander). But the kids weren’t to know it was a joke. Even when it starts buzzing when they’re telling the truth.

This clip shows Jimmy chatting to a young kid Blake. He puts several tough questions to him like, ‘do you like school?’ and ‘who’s better? You mom or a puppy?’, things really pick up when Jimmy asks Blake, ‘what’s your favorite swearword?’ And his answer is just priceless!