Graffiti Rock

Photos of the two graffiti rocks on the Stockton campus of University of the Pacific. The rocks are simply two boulders on campus. Students are allowed to paint anything they want on the rocks (well almost anything, I'm pretty sure profanity is out), but there's a catch. They can only do the painting between midnight and 5 a.m. So the rocks seem to mysteriously change overnight. I'm attempting to photograph the rocks every time they change.