Heh - I started working on a model to identify poop leavers from a video feed. I stopped when it was suggested that the ethics committee might give me a bit of a hard time.
Ethics committee? This is a DIY animal watching project...
You know businesses are doing more than this kind of shit in all their shops and stuff already. This country is balls deep in CCTV and ANPR and wifi hotspot tracking.
IR cameras
Find perps
Dump all your own shit on their doorstep with a "I know what you did last summer" note