Mucky Sausage

I swear there is no point in grooming or bathing Sausage. The minute I turn her out each day, no matter what the weather, she rolls. She creaks as she goes down, being a very old lady and then rolls an wriggles like crazy. When she gets up she canters off to the far side of the paddock and then looks around with a face which says "what've I done? Why are you looking at me? I've been here the whole time!"