WTF, I thought, upon encountering this in The Observer (of London, U.K.) dated October 11, 2009:
One letter can be moved from the first word to the second word, to make two new words. The letters must not be otherwise arranged. Select the correct letter: SCARF & RAIL; GUILT & POND; BLIND & SAY.
This is for a grammar schools test.
I feel like an ee-jit. A dunce. (Okay, okay. Now I see it. Phew!)
Speaking of the euphemism WTF, it seems to allow the unspeakable, in many polite circles, eh?