Our proper postie is very accomodating. Nice guy. We sometimes get somebody else, then we get everybody else's post and none of ours
We used to get an info pack for the weekend's engineering work sent out to arrive on a Saturday morning. The only reason it was sent 'registered' was to make sure it got here. Our postie was under strict instructions to ensure it
didn't go back to the depot. They're usually a bit wary of getting people up out of bed, but he knew he had to knock loud enough to wake the dead
If that failed, he left it with a neighbour (against the rules, but it was under our instruction)
The only problems we had was when they had agency staff covering. Apparently they aren't allowed to carry the registered post, and it goes out on the van. One morning I heard a noise, followed by a van door slamming. I ran out and accosted the offending mail guy, who looked cross. He had flapped the draught-excluded letter box, rather than using the brass knocker