Okay, I've seen an incident on a boat involving an OMS bungeed wing. Diver was using a large 55 or 65lb wing with bungees, and double steels. In the process of gearing up, the pull dump cord got tucked under a bungee while the wing was deflated or something, and he does a gaint stride off the boat without fully inflating the wing, grabs his videocamera, and heads down. Once he had to start adding air to his BC to stay neutral, he discovers the pull dump is now stuck open. Dropped like a stone until he was able to finally figure out what was causing the problem, and then be able pull the dump cord and plastic ball on the end of it out from under the bungee, which was now tight against the wing because he was putting air in it to try and control his descent.
One of either a) more careful gear prep including a buddy check, b) removing the plastic ball from the dump valve, or c) getting rid of the bungees, would have avoided this near miss. Point still is though that the bungees allowed it to happen in the first place.