That's another one I had once, although it wasn't RM, can't remember the courier involved but I came home from work once and found a parcel on my doorstep-for how long I don't know, but it could obviously have been stolen as well as presenting a risk of my house being burgled if it was taken as a sign that no-one was home. Wasn't even mine! Right house number, wrong street! The correct address was three or four streets away so I walked round with it, knocked on the door, no answer. Knocked at the next door and explained what had happened but they refused to take it in. Was about to try another neighbour when the woman whose parcel it was arrived home, after explaining she thanked me and said she'd complain to the courier.

You'd think so wouldn't you?
So would I, and did just that for some time, for kids birthdays etc.
Then one day I wrote a cheque for a piddling amount, maybe £18 or £20, put a first class stamp on the envelope and intending to mail it later, got on a bus to Liverpool Street and left the envelope on the bus.
Naively thinking that most people would do what I would do if I found a stamped addressed envelope anywhere, simply mail it, I forgot about it.
A few days later I rang the intended recipient of the cheque, and was told that it hadn't arrived.
I called my bank, told them the story, and gave them the cheque stub number, they said that it had not been presented, but said that they'd stop the cheque for free, and told me to write another one.
They said that if anyone opened the envelope and found the cheque, they could delete the payee's name, insert their name, and looking at my signature, just copy the initials by the erasure and bingo, pay it into their account.
Granted they could be traced eventually, but what a palaver to do that.

It's not just money that goes missing either - a few years ago I sent my friend three Jamie Oliver cookbooks for her birthday (not particularly cheap to post) and got a rather puzzled call from her later, thanking me for the stamp albums. The parcel had been marked 'damaged in transit' but I know for sure that it would have taken quite a bit of effort to break into and was unlikely to have just fallen apart (my packaging skills are highly developed and leave almost nothing to chance!). That one never did get resolved - Royal Mail just shrugged and said there was nothing they could do.

Not sure whether she kept the stamp albums.

I posted cards yesterday, some of which had decoration that "feels like money" according to the lady in the post office.

She informed me that they are likely to be stolen by the employees of the Royal Mail because of this!

The whole company is a disaster.

Every other day I get my neighbours post.

Can their employees understand a simple numbering system?