Students use hammers, wooden wedges, bits of rubber matting and other materials to help slow the flooding while using the Coast Guard's damage control simulator in Newport, Oregon, Mar. 27, 2017. Controlling flooding was only one portion of the 18-hour drill conductor's course in which fishing vessel safety examiners from Marine Safety Unit Portland taught commercial fishermen how to conduct various emergency drills for the crews aboard their own vessels. U.S. Coast Guard photo by Petty Officer 1st Class Zac Crawford.