And another thing (or two)...
There must be many, many (mainly) OAPs who will be saying "Didn't you get my card? The chiselling wotsits at Royal Mail, I bet they had it!". Well Granny/Grandad: we have to read addresses that are barely legible; you don't use a postcode; and you get the number/road/town part of the address wrong. I realise that writing becomes a challenge to you as you get older and you have my sympathies, and we really do try to deliver every card and some of the old hands know almost every address in the town I work in, so virtually every card gets there, but please, please get someone to check the address for you, if possible.
Oh, number 39, the reason I asked you if your dog was secure should have been obvious. You have an external letterbox (often a sign of a vicious dog) and your mutt launches its snarling self at the door whenever I approach. Most dog owners thoughtlessly open the door with their loveable hound loose. Said mutt then tries to get out the door to get a bite of Homo Patrickus, so self preservation outweighs your sensibilities and feelings. And yes, number 72, I have every right to hold your door closed until I'm sure your horrible canine is fettered. And no, number 3, I don't want to get acquainted with your dog so it feels better about me; just keep it away from me.
And, as for owners of those pressed concrete drives that desperately try to look like block paving (done on the cheap), which, at the merest hint of frost, are more use to Torville and Dean than as an access to your property; either put salt down or expect to have to collect your mail from the office. They are lethal. Don't do it!
And finally, to those people who thank me for posting to you when it's cold and frosty or wet: thank you, it's nice to be appreciated. Notes only, please, no coins or cheques.