10.25am BST

The Daily Mail sometimes seems to go well beyond self-parody – this is the paper that once began a full-page article: “It shapes our lives, governs our behaviour and keeps the Earth on an even keel. Now a new book poses the mind-boggling question: WHO BUILT THE MOON?” – and there are a number of pieces from today’s edition that could easily be April fools.

I’m pretty sure the exclusive about Asda’s 50 Shades of Grey toilet paper (“Each ‘shade’ has been named after lead character Christian Grey’s traits, from ‘enigmatic’ to ‘obsessive’”) is a spoof, although it left reader Rigsby utterly appalled:

This is plain wrong. Toilet related activities and matters of the bedroom should not be associated!

And the Mail’s page three story about owls being used to deliver internal post in an animal sanctuary must also be a fake – if only because the author is called Nesta Vowles.

The Mail also claims to have resolved the mystery of this YouTube footage, which has been knocking around for a while, that purports to show a woman using some kind of mobile phone in 1938.

The paper quotes a “user called 'planetcheck'” who claims the women is her great-grandmother: “They were experimenting with wireless telephones. Gertrude and five other women were given these wireless phones to test out for a week.”

I’m not sure this is an April fool, to be honest. Planetcheck’s comments were left on the YouTube page for the video two weeks ago. I think it’s just a rubbish story.