Something that's true in-universe sounds crazy to other characters.
I know that this is gonna sound crazy, but the truth sounds crazy sometimes.This refers to when a character is saying something that sounds crazy, whether to other characters or to the audience (or to both) but in-universe it's true. Sometimes It Makes Sense in Context, and other times it relies on a revelation made later on. No Mere Windmill and You Wouldn't Believe Me If I Told You are subtropes of this. Also, this can sometimes be one of the reasons for a Cassandra Truth. (Other reasons involve dismissing what is said for who is saying it, rather than necessarily because it sounds crazy.) Two categories of works especially prone to this are fantasy works, for not holding to realistic standards but having characters who have intuitive notions about reality viewers could identify with, and comedy works, wherein the outlandishness of the situation is used to fuel the comedic value of the use of this trope.
- Linguini, from Ratatouille