Re: Terms and Conditions and Conditions and Conditions...
Decades ago, I sent a (friendly) legal package to someone via a well-known courier company, paying extra for a signature. Nothing came back. When I talked to him, he claimed to have never received it. I requested proof-of-receipt. On the image, I could clearly read: "Exception". They told me that if the driver finds no one home after three attempts, they mark it as an exception and leave it with a neighbour.