@Vawulence Obsessive-Compulsive Disorder. It's like an alarm clock in the brain that you can't turn off. His brain gets 'stuck' on a thought—like seeing a tiny speck of dust—and treats it like a major emergency. Even if he knows it’s fine, he can’t ignore the 'alarm' until he cleans it. For him, cleaning isn't a choice; it's the only way to stop the intense anxiety and make his brain feel 'safe' again.
Merry Christmas Everyone!!!