QUESTION: "A simple substitution code has been used to conceal a 'quote.' Work out the code to decipher the original words.
"QMFBTF EPOU CSJOH UIFN IPNF. J'N DPOTJEFSJOH B DBSFFS DIBOHF."
MY ANSWER: "Please don't bring them home. I'm considering a career change."
ACTUAL ANSWER: "Please don't bring them home. I'm considering a career change. (Code: A = B, B = C, C = D, etc.)"
CONSENSUS: I think we can rule out Little Bo-Peep as a suspect in the Zodiac murders. (But why does "I'm" get an apostrophe while "don't" doesn't?)