Street sweeping is hardly known by most people.
But there is another out there who is more obsessed than I am with the field and I found out about him due to this article in the Milwaukee Journal-Sentinel--McKinley Page.
He has written fan letters to street sweeping manufacturers, has built models of street sweepers, and even has his own sweeper he drives around for fun.
I just like to see what they do to the environment. And I secretly think they follow me around on vacation. I see them everywhere I go when I am somewhere new. When I visited the White House, they were sweeping the driveway, when I visited Hawaii, they were sweeping outside my hotel room, when I was in Paris, they were sweeping the grounds of the Louvre. While McKinley definitely has me beat on the obsession side of things, I probably have him beat with street sweeper paranoia.
By the way, if you are interested you can buy my street sweeping book in my amazon store to the right.