I chartered a Moorings cat in Raiatea which was set up with a large carabiner on the bridle.

Picking up a mooring in Bora Bora, staff came out in the dinghy to help and hooked us up.

Unhooking the next morning, I found the carabiner with gate open clinging to a few strands of the loop in the mooring pendant.

Apparently, the mooring line was too thick to pass through the carabiner, so the resort staff passed the carabiner through the pendant eye and clipped it to the bridle.

My crew didn't think to mention this, and tension on the bridle pulled the attachment underwater, so I never saw it.

So the side loaded carabiner had unclipped itself overnight and fortunately caught on the mooring rope before we went completely adrift. <img src="http://www.traveltalkonline.com/forums/images/graemlins/duh.gif" alt="" />

Learned several lessons on that one!