Mankind's greatest achievement?

Some might say fire, or the wheel, or penicillin, or Pippa Middleton's backside - but I think you have to go pretty far to find anything greater than the fish finger sandwich.

Thanks to Microsoft for the suggestion of today's lunch - was writing a presentation earlier and wanted to drop in an image to represent lunch time - and what should appear but an image of a fish finger sandwich when I put 'sandwich' into the clipart search field.