Anytime he types "lol" without laughing, the LOL Verifier's light goes red, and automatically corrects his lie to something less deceptive, like "that's funny".

DoubleAgent Exploit Uses Microsoft Verifier Tool And Your Antivirus App To Hijack Your PC by Paul Lilly — Wednesday, March 22, 2017, 11:51 AM EDT Comments ...

The DRIVER VERIFIER DMA VIOLATION Blue screen is caused when the Driver Verifier has been instructed to monitor one or more drivers and this results in an error.