Richard unless you have a deeper knowledge than me, I haven't looked closely but I think the problem is that there is no storage capacity. Hay one day means dung the next, there are random depositions all over the place. I just happened to be in the wrong place at the wrong time. Given that the horse's capacity for exudation that it has no control over, I feel confident that my wife has no more ability to influence this given her difficulties of operating forward & reverse gears.