What’s the weirdest thing you’ve seen along the road?

I was driving my usual Highway 191 route yesterday.  I saw a office chair on the edge of the road.  It's actually been there several days now.  Doesn't the highway department take care of that?

I might have stopped to move it, except traffic whizzes by at 75+ mph.  I am wondering how it ended up there?

I have had all kinds of stuff fly at me from the back of pick up trucks.  Maybe that is how the chair got there?  I would think their is some sort of law?  What are some of the strange things you have seen?  I have also seen a vacuum cleaner, a Christmas tree (in August) shoes, and more.