The mood of the entire Southern half of England appears to have undergone a rare, although what's believed to be only a temporary metamorphosis today, as unprecedented numbers of people have been spotted being friendly to each other.
Reports from places as far apart as Bournemouth and Dartford tell of total strangers smiling in the street and actually initiating smalltalk such as, "Lovely day!" and "Blimey! Only the 9th of March and yet it feels like the middle of Summer! Isn't it amazing?".
The change from the south's normal miserable and insular demeanour towards one another is indeed being attributed to the unseasonably clement weather which has seen the mercury rise and temperatures soar to a balmy 20 degrees.
Professor Barney Lingholm of UCL, speaking on Sky News explained, "The indigenous South of Englander is without a shadow of a doubt one of the coldest, most sour-faced, up-their-own-derrière so-and-sos you could ever hope to encounter. Normally they would scarcely urinate on one another let alone be pleasant, even if one of them was in the act of spontaneous self combustion. However introduce unusual weather conditions such as snow or sunshine into the equation and it's a different story. It's as if you've stumbled into some place north of Watford and you can't shut them up. Yak, yak, yakety-yak!"
But lest we all get carried by the current wave of pleasantness, unusual goodwill and bonhomie, the Met Office has moved to reassure southerners that the current conditions are set to change. A cold front is waiting in the wings that will see the south returning to its normal pattern of grey, drab and drizzly blandness by tomorrow afternoon. "We'll all be back to our standoffish best by Tuesday's rush hour," Alex Deakin told viewers on Andrew Marr this morning.