Talking of Moray Eels and their dangers you might be interested in this. A guy had his thumb bitten off and eaten by a Giant Moray in the Similan Islands in Thailand. He was feeding at the time so it was his own fault. The video and story might be quite well known, with rumors about what actually happened, but there is a blog with all the facts. There's no need to castigate the guy here, he's learnt his lesson and now pro actively discourages interaction with marine life.
Here's the blog. The video of the accident is also on the blog.
Moray Eel Attack: Scuba diver has thumb bitten off and eaten | Scuba Diving Phuket
Here's the blog. The video of the accident is also on the blog.
Moray Eel Attack: Scuba diver has thumb bitten off and eaten | Scuba Diving Phuket