Violent and disrespectful classroom behavior has led to a staggering 50 teachers and bus drivers to quit a Florida school district in the last two years. Brevard County School District, the state’s 10th-largest, held a heated meeting Thursday that offered an unvarnished and often disturbing glimpse into the state of its classrooms. “On an everyday basis I am deflecting being attacked, scratched, headbutted, pushed, hit,” teacher Alicia Kelderhouse said as her voice choked with emotion. “I’ve had my hair pulled, and pulled down to the ground. I’ve had my throat gone for on multiple occasions. It’s on an everyday basis...