Since this thread is out on loan...
From the neighborhood listserv:
Please, PLEASE, PLEASE do NOT leave your dog poop inside other people's trash cans. It is very rude. I brought our trash cans back up to the house this morning right after the trash trucks came by, so I know that they were empty when I left for work. When I came home tonight, though, there was a bag of dog poop in one of our cans. It's especially frustrating that someone would do this right after the weekly trash pick-up and on a day when it is 90 degrees outside. Plus, this person clearly walked all the way up to the top of our driveway, which is on a steep hill, to get to our trash can since it wasn't even on the street. I realize that most of you are considerate neighbors, so I'm sorry to send this to the entire list serve. But I don't know who the culprit is and I'm not sure how else to get this message across since this isn't the first (or even second) time this has happened.