Subverted: Bob is watching the Super Bowl on TV with Heterosexual Life Partner Charlie. Bob says "I am not watching the super bowl." Charlie is amused.
Invoked: Bob is actually very perceptive, but uses the obvious statements as part of his Obfuscating Stupidity.
Exploited: ???
Defied: Bob begins with "You know.." but Alice cuts him off and asks if he's actually pointing out something the others can't see. He apologizes and shuts up.