From The Daily Oklahoman: About 200 students received a wake-up call after showing up late for classes Wednesday morning at U.S. Grant High School in Oklahoma City. They were locked out of the building, unable to attend school. In response to habitual tardiness, the administration at Grant High locked the doors promptly at 7:40 a.m. This wasn’t Principal Rodney Stearns’ first attempt to address the problem of students’ running late. Last week he rounded up all tardy students and took them to the gym for a lecture on the importance of being on time. That was Feb. 9, and 400 of the school's 1,500 students were tardy.