The real thing was that my bus was sitting at the stop for quite some time and the more I looked at sunglass guy the more I realised there was something else wrong.
I don't know if I can describe this properly but his sunglasses didn't touch his ears.
Not by a country mile. And at first I thought: "Hey, he's wearing his sunglasses abnormally high on his head." (which, by the way, was bald except for a snowy white comb-over that spoke of glossy blond hair in years gone by).
Then I looked closer and thought: "Oh. My. God. He has abnormally low-set ears!"
(Who knew there was a real live medical condition for this?)
And then, in case anyone thinks the point of this post is that I ride the bus in order to mock deformed strangers, I thought: "Thank god, something really sensible to blog about."
Block gone. Over it. Moving On.