Chris Arnold has sent me the truth about his Linhay in an email...
"That was my shed on Exmoor. It was originally intended to have a front, but one cold, windy, wet night the front blew off. The lodgers complained that their one & only room, in which they slept, cooked & did everything was very cold with only three walls. But I, being a mean & despicable, capitalist landlord, refused to put another wall on & the whole family died of hypothermia.
I didn't know what to do with it after that so I put up a sign, pointing to it, in the hopes that tourists, such as yourselves, would pay a pound or two to take a look at my three sided shed. But the trouble with only having three walls is that they are not very stable &, on another windy, cold, wet night, the whole shed blew down.
I still own the freehold for six square feet of Exmoor & am considering asking for rent from all walkers who walk across it. Unfortunately someone put a rope bridge across it, so I can't make this my next wheeze to make my fortune.
Its such a pain being a despicable, nasty, avaricious man, I think I might become nice, generous & welcoming."
So there you have it, The Daily(ish) Millbrook - informative as ever. Thanks for the message, Chris.