@Sheerheight
I would be surprised if Social services turned up out of the blue and tried to a trick like that Newspaper.
It would be very dodgy if they did.
Well, Social Services wrote the book on 'dodgy' - in Surrey at least, and likely in neighbouring counties I understand. Another one they play is, to the family, 'Would you like to get your parent back [to the family] home?' We got this three times, usually after we'd supposedly been exonerated on bad behaviour or relations with the care homes, so it's like they're doing you a favour.
Turned out they had no such intention of allowing that! Esp if you're self-funding, and so subsidising Council-funded care home residents to the tune of several hundred pounds a week - there's nothing in it for them!
No, they ask that so they can re-interpret your comment and make out that therefore you are likely to 'abscond' with your parent - a very serious allegation that can allow them to bar you from the care home! Esp easily done if you didn't know to get LPA in Health and Welfare, as it means the State is then the decision maker for your parent's care, not you!
They can also use the oddly drawn out process of pretending to consider whether to allow your parent go ahead with their return to 'engage' with the family - in other words, stitch them up! Otherwise, they don't have a pretext.
As you said, Social Services don't quite do it out of the blue - they need a pretext or jumping off point, and it's usually under the guise of 'offering to help'. Like the local Mafia, they come as your friends.
They won't want you to have your guard up.
Even when Surrey were pretending to allow Mum back home after dreadful behaviour from a Reigate care home (behaviour we later found via a Subject Access Request to the Council was fully authorised and approved in advance by Surrey's Social Services!) the social worker appointed tried that one on Dad at the very family home she was supposed to be considering letting Mum return to!
Boiler room scammers could learn something from them.