out of the blue

She telephoned famous anthropologist Louis Leakey out of the blue just hoping for some advice.

That was the message I received out of the blue from someone called Syndicate who pinged me in July on the encrypted chat app Signal.

Mr Davies, who worked at Network Rail before his diagnosis, said he was relatively fit with no health conditions when he "collapsed out of the blue".

Mr Barton, 58, said: "This came out of the blue and with no clear direction. I think it's absolutely woeful of any government to not have that direction."

If you get a text out of the blue saying you owe money for an unpaid parking ticket, stop before you click.