Subject it to as much opposing evidence and logic as possible.
Madness string 7339
When you tear out a man's tongue, you are not proving him a liar, you're only telling the world that you fear what he might say.
He was digging up moths and they were flying up and landing on his forearms and he was licking them off his forearms. And then he wandered on and kind of took a nap for most of the day.