Re: Abuse of rural mailboxes, etc.
A friend told me about how some acquaintances of his from Belgium spent a week driving in the South and concluded that there must have been a massive gun battle at almost every rural intersection.
That would have been a challenge to explain. But I suppose you would have to start with saying it's not restricted to the South.
Perhaps you have heard that future archaeologists might well call our civilization, "The People Who Shot Their Signs."