A chat with a co-worker today reminded me of this.
For our written exam in driving school we had to answer some questions based on photos of different traffic situations. There was one question I remember quite well: There was a photo of a two-lane gravel road in the middle of a summery forest. The road went straight ahead and turned left, and there was a traffic sign on the right telling that motor vehicles are allowed on the smaller road that followed.
The question was “can you drive straight ahead?”
I answered no — because there also was a bird on the right lane.
It was the wrong answer. Apparently I shouldn’t have paid attention to the bird.