I recently had a package delivered to me by USPS 5 days late, was left at my front door in a
plastic bag, crushed, soaking wet, and smelled of smoke from a fire, with the standard "We Care" BS on it. From what I surmised, the PO must have had a fire where my box was, and they flooded it with water to put the fire out, and that is how I received it.
BUT the contents were not damaged