adding a link: click on the youtube link, copy and paste the url and bob's your uncle....
About Sharks:
encounters of the toothy variety are everyone's nightmare... I know that we all have a large portion of fear when it comes to meeting the oceans apex predator but to a large extent the fear is unrealistic (I think- I'm not saying I don't have fear... I'm always thinking about it the night before I head off on a boat...). during all your diving you will probably only have a few encounters with sharks that are capable of eating you... hear around the Cape you are looking at the White, Bull/Zambezi (from infanta)... but Cape Spearo is right... the shark you see probably wont be so interested in eating you, maybe taking a nibble! I have only had one encounter with a bull shark and it checked me out and just carried on swimming...
sharks are inquisitive and the best advice i got was not to behave like prey..aka don't bolt, make sudden movements... it sounds all logical until you are in a situation where you are facing something that is looking at you the way you look at a nice steak....
in Cape Town , unless you dive Millers most of the dives are in kelp... I don't think there's much to worry about but then again there's always a chance, we are in their environment... I've never felt so slow in the water as the time I was hassled by a Raggie up in the Transkei....but I remained calm and pushed him off me a 4 times and then I managed to put my spear back and poke him with my spear which sent him off...
be safe, dive with a buddy....get a sharkshield (there are different opinions about these machines)... but you will need to learn how to cope with the fear... respect things that can eat you...
I've never used a banger, I have one but I've also never dived with it....