Trick shot

 Ohe years here at Rock HQ there have been many things that baffle, like a sheeps capacity for self harm , or the discovery of rules such as any animal can get through a gap exactly half its size or essential tools are always the furthest point from  any job currently undertaken. Todays wonderful discovery is this pile of pooh. Perhaps the boys have heard me moaning about the monster turds they deposit daily for yours truly to step in sweep up, so maybe they thought they were helping. But the question has to be asked.

 How did a pony gets its pooh on top of the tree stump thats over four foot high?

Thats some trick shot.

Answers on a postcard please.