“The world is mud-luscious and puddle-wonderful,”wrote the American poet and author Edward Estlin Cummings, echoing the magnetic attraction of small children splashing around in muddy puddles and getting covered in dirt.But after weeks of rain, muddy puddles may be losing their appeal. Much of Britain has been reduced to a sludgy, slippery, mucky quagmire and with no end in sight to the wet weather, the national mud bath is bound to grow even worse.But mud