Canine Diabetes

you know that stray i adopted. well she misses alot when jumping from the floor to the top of the counter or dishwasher etc and will slam into the side.shes young so i wonder if she's just reckless or if there's a eye problem.

Out by our maibox next to the sidewalk along our neighborhood street on the corner of our yard we've been having a problem lately with somebody either letting their dog or perhaps a stray dog poop there and leaving it. Never seen when it happens but just see the results and am getting tired of having to clean it up. What's an effective and humane way of keeping this from happening, and I'm not going to build a fence. Some substance perhaps that I could put on the ground around there. I've heard of using cayenne pepper, and have tried it but it seems like whenever it rains it must get washed away or something, because the problem continues.