Sloppy, Sloppy Slobs

I live very close to a popular walking, biking, hiking spot. Some of the paths are paved and some are sort of groomed  but not paved. Hundreds of people and dogs go up and down the canyon every single day. Every single day I pick up other people's trash. There are numerous cans along the trail including a couple that are for recycling but it seems that most people are too lazy to carry their own trash or dog waste to the appropriate receptacle. I have never seen anyone leave the mess but I watch as other walkers pass by without making any attempt to clean up after their slob neighbors.