Persistant Dog Fouling on pavements again!

This is the point where my driveway meets the public footpath. Yet again this morning someone has allowed their dog to foul. This is a frequent problem. I have to walk children to school and it's like a game of avoid the dog poo! It's not on, its unhygienic and a health risk to children in the area. There is a dog bin on the green opposite my house! It always happens really early in the morning (before 7.30am) I have raised this before and sticks were placed on lamposts but the problem has got worse again. I have cleaned it up again but I don't own a dog so why should I keep having to clear up after lazy dog owners?