I'm going to throw a bag of dog poop on my neighbor's door step.
Did your girlfriend not take care of your dog while he was sick?
Unfortunately no, I'm upset with her.
It is okay to be upset that your girlfriend did not take care of your dog and he got diarrhea but you shouldn't throw it at your neighbor's yard. It will make them mad and they can do something bad back at you.
Relax, I'm not doing anything bad to my gf. I'm only doing it to my neighbors.
You shouldn't litter on someone else's property like that especially with dog poop.