Do they? Well actually, they probably do. Look what happened to Titanic. Now, I like boats and I love the sea. We went out on our friend's motor boat on the weekend, one of those rib boats that zip around fast with the air blasting your face. It's all rather a lot of fun. Or can be. Safety first Captain, always; our friend is ultra prepared and he does all the safety checks - lifejackets (aye aye Captain), GPS (aye aye Captain), waterproof radio (aye aye Captain), ipod player (an essential! Aye aye Captain)...ecetera and so forth. But sometimes you just cannot prepare for the unexpected. Unless you're that psychic scouse guy Derek Acorn (or something) on Most Haunted (maybe). We were pootling around Cardiff Bay - speed restrictions in some of the areas naturally, so nothing too fast. We motored over to Penarth, we motored over towards the sailing club, we motored around the barrage. All lovely, all rather nice and refined. We pass many sailing boats (many of whom the sailor...