John stayed with us in the UK back in 2002 - that Wikipedia article picture should have me just out of shot... We took him to see the city of Chester - which John insisted on seeing the city walls "The last city I saw with walls was Beijing in 1920" I think he said. We took him to North Wales to see the sights there, and then he stayed in my home for a couple of memorable nights, when he baby-sat my eldest son while I rushed my baby son to the ER having found him bleeding and screaming after climbing a bookcase and cutting his head open. "John, I really, really need to get this little guy to hospital. Can you tell my wife where we've gone and look after this one ? " "Aw, sure, no problem". I came back to find John reading a book to my son. I have video of John "lassoing" the kids out in the yard with a rope he always carried to demonstrate with !
One of those visits that will stay with me forever- the youngest son is now 13, and still has the scar......