Dayvon Johnson, an Oklahoma native, is being hailed a hero after he performed the Heimlich maneuver on a choking classmate and helped a woman during a house fire all in the same day, according to Facebook. The unidentified student was choking on a bottle cap after trying to loosen the top using their mouth as opposed to their hands. Once the cap became trapped in the student's throat they made their way to a neighboring classroom where Johnson was located, the school's principal  said , according to Enid News & Eagle. Using the techniques he learned from a YouTube video, Johnson got behind the student, wrapped his arms around them and applied abdominal thrusts, saving their life. The same day, Johnson's interest in being an EMT came into fruition after he witnessed a house fire and a lady using a walker seeking to escape the flames. “It was a disabled lady and she was walking out of her house,” Johnson said . “She was on her porch. But I thought, being a good citizen, I would cross...