White dog shit?

See Here for the explanation - one explanation anyway - others say the cause was a brand of worming medicine. Whatever the case, white dog shit is very much part of the mawkish nostalgia that passes for English Cultural Heritage these days and one that most English people can relate to, along with the Johnny Seven and the Party Seven, depending how old you were at the time, though I old & young enough at the time to have fun with both.

English Culture - whatever the fuck you want it to be just as long as you accept your opinion is only as valid as anyone else's.