"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 --" 
Owlglass was clearly having some trouble getting to the end of the sentence. 
        -- Carpet philosophers at work 
           (Terry Pratchett, The Carpet People)