Today the post office delivered a paperback-sized package to me. It was addressed to
XXX Our Shal XXX
$myhousenumber $notmyroadname (but the 1st 2 and last syllables are the same)
$mytownname
$mytownname (again)
$randompostcode (which was a valid one but of a business park about 10 miles away in Farnborough)
So the only things which matched my address were the house number and town name.
I was going to take it to the sorting office which is close enough, but I wondered about Our Shal, whoever she was, and was she missing a birthday present. Shal is obviously Sharon, and has rellies in the north. Now my next door neighbour is a Sharon and is from the Wirral, and it was her birthday on Sunday. And indeed it was for her, from her mum who is in a care home, and didn't know it was S's birthday when she rang on Sunday.
But full marks and a gold star to Royal Mail for getting so close to the intended recipient with so few clues.