A Strange Hobby

==Opening remarks==
They say that every man should have a hobby to help him relax. My wife's got me interested in a couple of unusual pastimes, prospecting for rare minerals and back garden tennis. Well that means Robin spends his spare time getting the coal and bashing the dirt out of the carpets for her too. But aboard H.M.S. Troutbridge it appears that Lieutenant Bates has got a strange hobby too.
Category:Season 4
Category:Episodes