Sanity Slippage/Playing With

Basic Trope: A charecter's sanity begins to slip.

Straight: Bob starts losing his sanity over time.
Exaggerated: Bob becomes an omnicidal maniac.
Downplayed: Bob goes crazy, but it isn't noticable to anyone around him.
Justified: Bob got poisoned with mercury, which can cause insanity.
- Alternatively, Bob was already insane, but lost or ran out of his medication.
Inverted: Bob starts out insane and becomes more normal as time goes on.
Subverted: Bob goes insane, and then becomes sane.
- Or, he found his medication or got a refill.
Double Subverted: ...And then he becomes insane again.
Parodied: Bob belives that somehow, somewhere... a duck is watching him.
Deconstructed: All the people Bob once knew and loved are now scared of him and don't trust him because of his slipping sanity.
- Bob is put away in a mental hospital.
Reconstructed: Bob's family and friends decide instead of avoiding him they should help him regain his sanity.
- Bob is declared not a threat to himself or others.
Zig Zagged: Bob slips into and out of sanity.
Averted: Bob is compeletly sane and never becomes crazy.
Enforced: "Crazy Bob is just more popular then sane Bob."
Lampshaded: "Is it just me, or is Bob acting stranger then usual?"
Invoked: Someone broke a thermometer over Bob's head.
Exploited: ???
Defied: "I'm not going crazy, I'm not going crazy, I'm not going crazy!"
Discussed: "I swear to God, Bob is losing his sanity!" "No, you think?"
Conversed: "Why is it always the nice ones who go nuts or are badass?"
Played For Laughs: Bob's craziness is nothing more then saying stuff that doesn't make sense and doing silly things.
Played For Drama: Bob goes nuts, and becomes a serial killer and kills his loved ones.