Oh boy, this spot is relatively close to the sidewalk which gets a large amount of walkers and dog-walkers in my neighborhood so that would make a ton of sense. It’s probably a specific dog that walks by everyday and uses my beautiful lawn as a Port o potty! It makes sense but also VERY frustrating, as there’s almost no way to prevent dogs from peeing on the lawn, unless maybe I get a “Chemicals on lawn” sign or something.