Reposted from gin85 at Tumblr:
Sherlock Holmes is called in to investigate a murder. After examining the scene, Holmes announces that the killer was a librarian.
“How can you tell?” asks Dr Watson.
“Elementary my dear Watson. First, the murderer not only alphabetized the victim’s books, but shelved them by genre. There is the fact that the murder itself was clearly inspired by a rare Victor Hugo novel recently acquired by the branch library down the street.
“However, the real give away is that, after the victim was killed, the murderer dragged his body over to the toilet and wrote on the body, ‘Can you find the bathroom now?! Can you find the bathroom now?!’”