Out of all classes you could ever teach, you'd think the instructor teaching one about public safety would take safety precautions. But one California teacher didn't on Tuesday afternoon.

According to The Washington Post, the mathematics teacher, who is also a reserve school officer for the Sand City Police Department trained in firearm use, accidentally discharged a weapon in a classroom at Seaside High School in Monterey County. The teacher discharged a semiautomatic handgun pointed at the ceiling. Opening fire caused debris to fall from the ceiling.

One male student was injured from the debris that fell from the ceiling, but the injuries were reported to be non-life-threatening. While the Seaside Police Chief Abdul Prigden stressed that the 17-year-old-student was not hit with the bullet, the teen's father, Fermin Gonzales, said otherwise. KSBW 8 reports that his parents were shocked when the teen arrived home with a bloody shirt without having been notified by the school. Additionally, his father claims his son has bullet fragmentations in his neck, which contradicts the Prigden's statement in the Monterey County Weekly.

Two other students were injured during the safety course, reports NBC News.

Meanwhile, students across the country are participating in walk-outs this morning, according to The New York Times. The walk-outs were inspired by survivors of the February 14 mass shooting at Marjory Stoneman Douglas High School in Parkland, Florida. Their main platform is to get guns out of schools, especially following Trump's comments suggesting teachers should be armed to prevent school shootings.

Parkland students have also planned a national "March for Our Lives" march in Washington, D.C. and other major U.S. cities on March 24.