This plastic jug probably came from the restaurant next to the field. Someone put Xs on it to indicate you shouldn't park on the narrow concrete road. Someone else thought it would be a good place to put an empty tonic drink bottle so it would become Someone Else's Problem. It's not littering if someone eventually takes it away, right?
I called this post 'Balance' because as I was preparing the photo for upload, I noticed that the bright container is balanced by the light sky. I've posted a colour digital photograph of this scene, but I rather like this black and white film version.