We already know that lie detectors can be inaccurate, but what about using a fake lie detector? Alex Zane here uses an air conditioning unit instead of a real lie detector to fool a “game contestant” into embarrassing himself.

It doesn’t get any funnier than forcing a grown man to admit that his “penis is one inch.”

This clip was actually taken from the hilarious comedy show Balls of Steel which still airs on Channel 4 in the United Kingdom. If you know anything about the show it’s that Alex really shows no mercy on the people he is pranking.

But what really gets me is the fact that the man pranked would allow this footage to be released on the show. He may be “10 percent gay,” but he’s got some real balls.