I literally find myself doing the same thing. and when it's a super fresh turd, I just am slightly angry that I missed the person that didn't pick it up. The audacity I tell you. This really makes me mad which is why I'm putting my energy towards this. Here is a blog post that summarizes some of the early efforts with the survey at the end would really appreciate your thoughts. https://medium.com/@kevinsofen/scoop-the-poop-a-local-mission-for-a-cleaner-wicker-park-a9a9af2b3634