Hiya
Re: the Great WHite shark with the gaff in its throat/neck. Just some advice. Most of the GWS's i've encountered, WILL become very violent if provoked. Gaffing him from a boat with a short gaff would cuase the shark to become violent. Possibly holing the boat on even leaping into the boat!! Contrary to popular belief, GWS's are VERY unpredictable and have a violent streak in them.
If you really want to scare yourself, check out a fishing book called "STRIKE". The Schoeman brothers wrote this book, which by the way, is a MUST have for any angler!! They have a chapter called "Shark, the Menace" in the back of the book. Tales of how agressive these GWS are, holing boats, leaping into boats, attacking boats, etc. Really scary stuff!!
Here's a couple of pic's of GWS. This pic was taken a few weeks ago when this shark grabbed another smaller shark, biting it in half. It then came back and grabed the other part, smashing into the boat in the process. I only managed to get the camera out as the shark was swimming away.....