The post office just doesn't seem to get it sometimes.
Seems to me that your customer is the one who don't get it ....
The postal customer is the responsible party ...to provide a suitable mail box...
There is pose to be a 4x4 running the full length inside up to the mailbox, looks like it only went half way--bad mistake
If he had wanted a woodie he would not have bought plastic.....or maybe the mailbox needs some Viagra.
The mailbox puked!