Lifeguards are being praised for their quick work Wednesday at Gilley Pool after a terrifying-looking accident from atop the high dive.Justin Scott, Wellness and Aquatics manager at Gilley Pool, is proud of his staff and the way lifeguards reacted following the first serious injury at the pool this year.According to Scott, a 14-year-old boy, who has not been identified, did a back flip off the high dive. The teen went straight up, not out, and came down and struck his face on the board. Blood was gushing from his nose.The boy was conscious and was able to climb out of the water even though he was dazed.Matt McColloch, head lifeguard on duty, saw the boy hit from the office window.