Interesting, informative post, thank you. Instinctive to me, yet having recently moved back to the city from the wilds, grounding through spending a great deal of time barefoot, or swimming in the ocean, has become more of a challenge - I do not feel at all drawn to wiring myself up to the house though!
I know what you mean, it doesn't sound very natural, although it's not actually the house but the ground outside the house.