When we had a dog, my dog poop rules were pretty simple.
Poop in my yard: It gets scooped up and disposed of once a week or so, weather permitting.
Poop in someone else's yard: Bag it and toss it in the garbage. Nobody likes dog poop in their yard.
Poop in tall weeds or grass alongside the trail around the lake: It gets left to act as fertilizer, I'm not a loony.
Poop in our yard from someone else's dog: Obviously they lost this valuable thing, I will try to determine who it belongs to and return it to them via aerial delivery. Despite the passing of our much beloved family member, we don't miss the poop. This policy still applies.