I know I saw this a while ago, but I just had to add this in here.

Most ironic picture ever!  I understand that you don't want dog pee on stuff, but guess what?? It is a city with TONS of dogs.  Dogs that I have been walking past my own house have peed on my recycling bucket and steps.  Do I like it? Of course not, but I accept it.  Rain helps, and bleach, and the thousands of other cleaning products out there.  May I also say that many drunk people also urinate all over this city as well.  I have seen a man pee on the side of a house a block away from me in broad daylight.  So with that, I must tell you to think twice before blaming a dog for pee on your property.