Late night comedian Jimmy Kimmel has an ongoing series where he pulls pranks on kids. Most of them are kind of mean, but you know you laugh. His latest - hooking a seven year old up to a fake lie detector. Watch for yourself how it unfolded:

 

And apparently that wasn't enough. You can check out the other kids hooked up to fake lie detectors by clicking here. Don't worry, we won't tell anyone that you laughed...