Spot the Poo Bag

 Chris and I are taking a close look at the grikes in the limestone on the top of Whitbarrow scar. Spot the dog poo bag - why do people do this?? 
The extra is Blackthorn, its too early for Hawthorn but the bushes are very low. Blip taken on the top of Whitbarrow Scar during quite a wet walk. Curious that the bushes seem to prefer the limestone and not the grass.