Only last month I got my own underwater housing for my 5D Mk II and no sooner than a week goes by and there is a report of a shark attack on Avoca Beach (my prime shooting spot). Looks like it wasnt so much as an attack more like a surfer standing on some kind of Wobbygong and it gave him a nip on the leg.
I currently follow a stream on the website flickr for people who shoot with underwater housings. Great source of info and also the pics too. Well yesterday this bloke dale had a close encounter of his own. Check out these shots with a Mako coming at him. Crazy crazy crazy stuff. He kept his eye on the shark at all times and fought it off with his housing, but still took a few shots as well.