This dramatic video from Jimmy Silveria shows a great white shark stuck in diving cage. After the shark bites through the main air hose for the cage, the dive master is slapped in the face by the shark and loses his regulator, forcing him to go to the surface just as another huge shark comes to inspect the situation. Luckily no one was hurt and the shark survived after being stuck for over 20 minutes. See more video of the incident here and here

The events are described in this blog from another diver who also shot video Credit: Jimmy Silveria