Yale University police are apparently seeking a “poopetrator,” the Yale Daily News  reported, as multiple students in a residence hall have returned to the laundry room to find their clothing soiled in urine, feces and food waste. Also last week, someone hung several items of clothing smeared with feces outside a different residence hall, then apparently notified Daily News reporters via an anonymous e-mail address, email@example.com, according to the New Haven Register . The emails were signed "Copro Philiac," presumably referring to coprophilia, an obsession with excrement. A residence hall official told the Register Yale is upping surveillance and security in laundry areas, and police are investigating the incidents. A Yale spokesman declined to comment.