Complex sentence: He also has the dubious distinction of being saved from drowning twice by Aubrey and has been known to drop sharp edged tools from great heights, that may injure or narrowly miss his shipmates.
Split into simpler sentences: He also has the dubious distinction of being saved from drowning twice by Aubrey. He has also been known to drop sharp edged tools from great heights, to injure or narrowly miss his shipmates.