I had an argument with a crow

One time I was on a pebbly beach, sitting with a notebook on a fine summer day, when two crows began to squabble about some little bit of something.

They became annoying so I threw a little stone over near to them, and told them to shut up.

I don't remember paying any more attention. In a while, as I was going back about my own business, one of these birds took off and flew low behind me.

About five feet away and almost directly behind my back, it dropped a pebble.