Police in the Milwaukee suburb of Wauwatosa are still on the lookout for the prolific vandal who tagged 80 local stop signs with the inscription "Voldemort." The resulting "Stop Voldemort" placards baffled the cops until one of the investigators' kids explained its provenance as Harry Potter's evil archnemesis. "It took a 7-year old to tell us what [the graffiti] was," said a Wauwatosa police captain. "We thought it was just some type of new tagger." Wait for the "Yield Hermione" signs to follow as early as this weekend. [Chicago Tribune]