The Houston teacher who was caught on video beating up one of her 13-year-old students apologized on Friday for the incident. It won’t save her job though: She has already been fired. "I am without excuse for my actions. I am very regretful and sorry that this incident has ever occurred," Sherri Davis said. "If I could go back again, I would do things much, much differently." The video shows Davis slapping, kicking, and pushing the student around on the floor.