[great_kraken]

Personally, my regular mail carrier is fine, but there's a different system for parcels (this is in Brooklyn, NY) where it's always someone different. The majority of the time, they don't even get off the truck and try to deliver the item, they either just leave a 'notice left' sheet, or none at all, and mark the item as 'unable to deliver, notice left' or 'undeliverable as addressed.' Or they mark it delivered, and don't deliver it.

Then, when you schedule a redelivery, they just don't redeliver it. If you call the post office, which I have to do at a secondary line I discovered (apparently for carriers), since their main line seems to be left off the hook or turned off, they will report that they have it there, and you can pick it up if you want.