Age and enthusiasm play a big part in how many holes a person is willing to do with a PHD. There was a time when I would have dug 15 fence posts by hand. Now one mailbox post is pushing the limits. I went out and got my PHD out of the shed the other day and one side of the scoop had rusted half off. Seems it was up against a bag of lime and ten years of sitting there did it in.
The mail box move will have to wait.