Basic Trope: Tinfoil hats are a universal sign of unnecessary paranoia.
- Straight: Bob is a conspiracy theorist who wears a tinfoil hat when he goes outside.
- Exaggerated: Bob is a hermit who has pantophobia and wears a tinfoil hat at all times, even when he sleeps.
- Downplayed: During a thunderstorm, Bob's first instinct is to put on a tinfoil hat.
- Justified: Bob lives in a world with aliens, and tinfoil hats are a proven method of warding off psychic attacks.
- Inverted: Bob is an alien who wears a tinfoil hat to protect himself from humans.
- Subverted: Bob is convinced aliens exist, but doesn't wear a tinfoil hat.
- Double Subverted: Bob wears a tinfoil suit covering everything but his head.
- Parodied: Bob is made of metal, and wears a tinfoil hat just for good measure.
- Zig Zagged: ???
- Averted: Bob is very against the idea of aliens using ray guns on human minds, even though there is strong evidence to suggest otherwise.
- Enforced: "What can we do to show this character is completely bananas? Oh, I know!"
- Lampshaded: "Where does Bob get all that tinfoil?"
- Invoked: ???
- Exploited: ???
- Defied: Bob wears a tinfoil hat purely for cosmetic reasons.
- Discussed: ???
- Conversed: ???
- Deconstructed: ???
- Reconstructed: ???
- Played for Laughs: Whenever asked about his tinfoil hat, Bob goes on a ridiculously long spiel about how aliens will come one day and he's preparing like everyone else should.
- Played for Horror: Bob goes insane due to his conspiracy theorist mind, and the only evidence of which is his tinfoil hat.
