Senior Chief Petty Officer Rob Goley, officer-in charge, Coast Guard Station Rio Vista, instructs Seaman Apprentice Rachel Calhoun on how to properly use a signal flare in the event of an emergency water rescue, Friday, April 6, 2012. The flare training was part of a media embed for a story about the safe usage of flares. U.S. Coast Guard photo by Petty Officer 2nd Class Levi Read.