Poop has caused problems. It spreads diseases like E. coli, the smell can cause people to get sick after a long time, and poop can cause plumbing to mess up. Then the plumber has to fix the pipes. Plumbers have to squat down. And if you have to fix a toilet yourself, you might get cut and get raw sewage in a wound, which can cause infections and might be lethal if left untreated. And dog poop is absolutely disgusting if you aren't being careful and you step in it. So it is harmful. All you people are stupid. Obviously poop isn't intelligent. It's clearly urine that's intelligent.