The writing was on the wall Wednesday morning when a bomb threat scribbled on a bathroom wall prompted the evacuation of all 1,800 Warren County High School students.According to Director of Schools Bobby Cox, the mass evacuation was prompted when a student saw a message written by a boys bathroom urinal.“It read something to the effect that the person had placed a bomb in the school and not to tell anyone,” Cox revealed, noting the message was scrawled in blue ink and was barely legible. “I had to strain my eyes to read it since it was very light.”McMinnville Police Chief Bryan Denton said that despite the fact the message could have been an old one given its faded appearance, authorities did not want to take chances.“In today’s environment, you just never know,” Denton said. “In this case, we needed to err on the side of safety.”In accordance with the school’s emergency plan, students were told there was a fire drill and to leave the building.