The Atlantic 1941, a lone German U boat is being hunted by the royal navy,s new submarine destroyers after sinking shipping bringing supplies to Britain. SILENT RUNNING, orders the captain as the destroyers gather above, total silence is observed by all, beads of sweat run down exhausted faces as the echo sounder signals destroyers directly above.Suddenly, breaking the silence, there is a metallic tinkling noise from within the bowels of the sub that seems to get faster, then slower, and fast again but not letting up.MEIN GOTT, hisses the captain to the first mate, ffs go and find out what that noise is before we are sunk.So the first mate goes to find out what it is, after a few minutes the tinkling noise stops, thank fck thinks the captain we are saved, then the first mate returns. What the hell was it? asks the captain, well, says the first mate I tracked it down to the kitchen where the head cook was having a wank and his cufflinks were hitting the side of the ships hull, well thank god you made him stop retorts the captain. Oh, says the first mate, he wouldnt stop.............. but I got him to take his cufflinks off.