Nearly every week the recycling and/or trash cans are not properly picked up by the trucks and they dump on the ground and the trash is left behind. Not a few pieces, but lots of trash sometimes including bags of trash. I've watched this happen and talked to the garbage truck driver and he picked it up, but only when I'm around. Usually it is the garbage trucks. The cans are not too close together, as I've watched them come by several times, but it appears they are in a hurry and don't care to clean up the messes.