Sometimes, I come across dry animal poop in my flower garden. After removing the poop, I always wash my hands. Should I also get rid of any plants or soil that happened to be touching the poop? Also, when someone cleans up his/her dog's droppings at someplace like the beach or a park, is that spot harmfully dirty? Should I, for instance, be worried about sitting on the ground, and then sitting in my car (shortly after with those same pants on) and touching the steering wheel (if I touched the ground with my hands)? Basically, how careful does one have to be? I don't want to be paranoid about cleanliness, but I also don't want to get sick (or get anyone else sick).