One Dirty Dog - This is picture of our dog Misty . Not all of the Misty pen has grass growing on it . Some of it is covered with gravel ,but the rest is just dirt. When the snow melts then we get Mud. So until it drys up usually Misty gets covered in Mud everyday. Fortunately we have a had held shower. We put Misty in the tub and then dry her off a bit and she is free to roam the house.