We have a lazy postman that consistently has been leaving our curbside mailbox open, and placing packages on the opening of the mailbox where they can easily be stolen, rained on, damaged. He did this again today, and I've had enough. We are at this guy's mercy, and we want to go about it in a careful manner. We want our last ditch effort to be filing a complaint to the post office. In the meantime, would a note kindly asking him to place packages by our front door and to ensure our mailbox is closed be sufficient?