I am shamelessley coopting a topic introducted by avec in another thread. Just wanted to get that out of the way. Anyhow:
What do you think is the single most absurd bit of flavor text in Arkham? It will probably be an encounter, but feel free to include text from other sources (Mythos cards, character backstories, etc.). Feel free to include multiple ones if you can't decide between them. For me, it's this little gem:
"A little old lady stands in front of you in line counting out a bag of pennies to deposit. Lose 1 Sanity."
I always like to point out that you are far, far, far likelier to go insane from waiting for this old lady than from seeing Cthulhu. Think about that one for a second.