'Well … welcome. My house is your house', his brow suddenly furrowed and he looked worried, 'although only in a metaphorical sense, you understand, because I would not, much as I always admired your straightforward approach, and indeed your forthright stance, actually give you my house, it being the only house I have, and therefore the term is being extended in an, as it were, gratuitous fashion —'
Terry Pratchett