PANAMA CITY, Fla. - Coast Guard Chief Warrant Officer Grady Garrison, a marine safety inspector with Marine Safety Detachment Panama City, explains the importance of man overboard drills to the crew of offshore vessel Mary D., Nov. 18, 2010. A complete inspection of the vessel was performed by Garrison and Petty Officer 1st Class Ryan Burke. U.S. Coast Guard photo by Petty Officer 3rd Class Casey J. Ranel.