Navy Secretary Ray Mabus rang a cowbell during MSU's commencement program Saturday. The former Mississippi governor told graduates their land-grant institution has been one of the nation's finest since students first arrived in 1880. The University of Mississippi alumnus also told the Humphrey Coliseum audience this likely would be the only time they would see him ring a cowbell. Along with the ringing, his "Go Dawgs" proclamation drew loud applause and cheering from the crowd.