I’m not pretending anything.
Allow me to expand a little.
A friend of mine (I’ll call her A), whom I’ve known for decades, and up until the last couple of years has always been incredibly level headed on most matters (although a teeny bit woo on some subjects) has become friends with someone I’ll call B, who is a full on conspiracy theorist. I can’t absolutely say that she believes in all of them but as far as I can see, she believes in quite a few.
It isn’t B who has told A this story about the litter trays but I do think that spending so much time with B has caused A to start to be more credulous about shite.
A’s sister - another very sane and sensible woman - is the person who told A about the litter trays.
I was trying to explain to A how these sorts of urban myths take hold and how it’s so,so,so,SO unlikely to be true. However, if I could point to a Mumsnet post that said “Yes, this rumour was going around about my DCs school - of course it was absolute bollocks” and it was the same school, that would be the end of it wouldn’t it? It would no longer be me saying “It’s soooooo unlikely”. I’d be able to say “Look this person’s child goes to the same school and has confirmed categorically that it’s not true”.