Easy quick way to 'foot' (aka anchor) fence posts with a post driver / post banger.

Quick, easy and reliable method to foot or anchor farm fence posts after you have driven the post in with a post banger / post driver.
More sophisticated post drivers often have a rock spike that can do the same job, but they cost much more than my basic post driver.
I made this solution one wet winters day using scrap metal I had collected.
It is very easy to use.