My Ginger has decided that she wont step on the grass in the morning when its cold, or wet, or if it is foggy, or raining, etc... she has decided that instead she will potty on my patio! She knows this is bad behavior and will not do it when I am looking but as soon as a turn my back she potties on the doorstep.If I leave her outside while I am at work she will also do her other duty on the patio. Our housing has very strict rules about this sort of thing and I have recieved notices about her inappropriate behavior ( we are required to keep short fences because of appearances and anyone walking by can see the evidence scattered about!)How do I convince her to go on the lawn instead of my doorstep!!??