Dirty Dog
Have you seen this
http://www.grindtv.com/outdoor/natu...sery-shark-saved-in-first-of-its-kind-rescue/
I had not seen that particular clip, but I've seen plenty of others. One of the things we make it a point to do is carry a mesh bag to remove trash from the reefs. That includes cutting out fishing lines and such that are tangled in the reef. Those are a risk to divers as well as the sea life.