Last week my friend and I went traipsing around the Nike Site above Anchorage. It's way above Anchorage, and pretty steep. At one point, he asked if I needed a bottle of water. "No, I need a bottle of oxygen," I replied.
That stuff is actually quite toxic, and can cause blindness in high concentrations.
"Well, can I breathe it till I need glasses?"
Last night we watched the opening ceremony in London. J. K. Rowling was there, and it was magical enough, that you might reasonably have inferred that the Quidditch World Cup was about to be played, but sadly, no, it was just the Olympics. Or at least, that's what they told us.