-4

This made me laugh for some reason, after all the reams of exotic and gibberish numbers my calculator has spewed at me over the years, minus 4 seems almost comically mundane.

Unless of course you are an astronaut, in which case minus 4 might signify the number of seconds you have before someone sets light to the mountain of rocket fuel you are sitting on.

That also brings to mind the 4 minute warning. This was a system of sirens and broadcasts developed during the cold war, the purpose being to let us all know that we had 4 minutes left to live before soviet nuclear missiles rained down on our heads.

Since this system was scrapped in 1992, it now falls upon my calculator to alert the entire nation of impending doom. You might just about have time to make one last cup of tea before being vapourised.

Cheerio...