Look for a guy with a lot of dogshit in his yard
There are better ways than being a faux glazier in a dog park. If you have dog poop in your yard, just cover the areas desecrated in chili powder, black pepper, cayenne pepper, etc. after cleaning up. The dog, when he comes back to do his business, will sniff around to find out where he went before. He will get a spicy snootful.
I did this when one dog was constantly pooping in my side yard. After several Mexican snootfuls, he only comes around occasionally.