We’ll try to get this over with quickly. Scooping your dog’s doo doo isn’t just a courtesy: According to DES, pet waste can be a big source of water pollution. When left in the open, it can be carried by rain or snow runoff directly into nearby water bodies or into storm drains (which empty into water bodies).
Untreated animal fecal matter and wastes can become a source of harmful bacteria and nutrients in water: People who swim in it or drink from it are at risk of getting sick.
So reuse those plastic bags, or find another receptacle. However you do it, please scoop!