✔ 最佳答案
i think its territorial, because although at times you can find hoards of poo on the ground, almost every time there's a car nearby it will have the poo on it.... then again it is possible that we are simply neglecting to notice when there are few hits on the ground because no one really cares, but when there is a single mark on a car the first thing on our minds is "why do those jerks always poo on cars!?"