Do we really speak the same language?

I was told before coming over that Americans and Brits share a common language known as English. And so naturally, I assumed that when i told them that i was coming with my wife, and they told me that the apartment was furnished, it would have been understood that we aren't dwarfs! Thats right, those are pictures of our couch, where most of you will be sleeping should you decide to stay with us.