A1Sailor
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Actually, he displayed some initiative there! If you look closely at the BBC pic (which carefully avoided including the cardinal buoy), you'll see that on discovering he was short of balls, he quickly dropped anchor, so was able to display the correct signal!
Haha. Perhaps the owners will have his balls - assuming, of course, he isn't a she!
Perhaps it was a publicity stunt? I bet they've had a lot of hits on their website over the past 24hrs!