This nail broke not one but two hammers
Even if you are not much of a handyperson, it is still important to have certain fundamental tools, such as a hammer and a screwdriver. These items will get you out of many situations with minimal effort, so you should make sure that you get sturdy, good-quality items.
You should certainly make sure they will not be ruined by a single nail. This extra-strong one managed to break not one, but two hammers. Perhaps there is something faulty with the wood the handles were made of. It is either that or the nail is made out of mysterious ultra-hard material.