Stop leaving your excrement in my yard

This is not a entire rant post, I have a point. I am an early 20's college student. I am a part time mail carrier for the USPS. I walk on every house on my route every day and inevitably see how all you lazy fucks dispose of your shitty remains. On my specific route I see three things, 1. your dog's shit, 2. your actual shit, and 3. your disposable wipes. Your dog's shit I can't control but your own shit I can. I am a mail carrier, not your personal shit disposal service! I see so many of you lazy fuckers just squatting in your front yard and leaving your shit there to rot for the next unsuspecting fool to step on. About 3 weeks ago I stepped on a fucking log of shit on my route because of your fucking stupidity. I didn't even get mad I was just like, "well that's life." But this is getting to the breaking point. Today I just walked by another house on my route and I though to myself, "well here we go." Sure enough a restepping of another fucking shit log. This is what you get for leaving trash in the yard. You shit where you eat. You are better than this.