Have you ever thrown away garbages on the roadside? I have, to tell the truth. But not anymore.
Since I started to have a dog, I sometimes care about garbages and rubbishes on the roadside. It's nothing at all to those who don't care, but to a dog ower it's sometimes a problem.
Dogs, unless they are well trained, finds it and eat them. Most of the times it is not something that dangerous, but it could be. I have heard the news telling that dog ate poisoned food that was set by someone who was intending to kill them.
It's not garbages but falling leaves and seeds sometimes disturbes me too. The other day I found my puppy snitching otya-no-mi with his fingers. It stucked in his throat and almost choked him. Can't take my eyes off him, in many ways.