Callie sits down on the side of the road whenever a car passes. Good dog!
I suppose that I taught her to do this when she was a puppy, trying to be sure she didn't run out in front a vehicle or attempt to chase one. At first she would sit down wherever she was, even in the middle of the road. So I had to make sure she came off to the side before sitting down. Now, years later, she does this automatically and without any command from me. It's almost comical, but it's a good thing.