Of all the “third rail” topics concerning dogs, here’s one I never could have guessed would make some people incensed: A passerby putting a bag of dog poop in their garbage can. Ack! Apparently, this makes some homeowners angry enough that they put signs on or next to their garbage cans, set up security cameras in order to identify and eventually confront the offenders, or threatening penalties for the alleged “theft of services” (using someone else’s garbage service).