It is rarely advisable to jump in the water with a bull shark, one of the shark species most likely to attack humans. It becomes less of a good idea after you have been fighting the same fish on the line for quite some time. The video was uploaded to the YouTube channel of Gasparilla Big Game, a charter service operating out of Gasparilla, Florida. According to the video, the diver used a swimming technique to revive the shark after it became exhausted post-release. The unorthodox approach worked.