Dont know if this counts as stupid or just bad luck. Attacked a convoy at night. Sank one large tanker and damaged a couple merchies. Went to about 50m to reload tubes while the Escorts hammered away at me. Now keep in mind, I try not to use the map view when evading escorts but prefere instead to stay in the control room and have my sonarman keep me informed. I was taking a swirl on the hydrophones myself, Escorts are close but not too close, then ..... blammo! "Whe're taking damage sir!" Batteries shot, electric engines down, flooding in 3 compartments. I sank to the bottom where I made enough noise that the Escorts pounded me into oblivion. All the while going WTF??? Just before the screen of death I checked the outside view, and sure enough, I had managed to manuver myself around and ram right into the sinking tanker.