If the no pooping signs don't work, try this, Beth @themefragrance
Scarecrow Sprinkler. Motion activated and works wonders if you're plagued by unwanted cats in the garden.
The Scarecrow Sprinkler (image) is designed to discourage pests humanely. It uses water spray. - David Beaulieu
ScareCrow Sprinkler Motion Activated Animal Deterrent. I bought one and it works great!! My bird feeders are finally safe....
Contech Scarecrow Sprinkler Hoses Down Garden Trespassers......great for the deer,squirrels,gophers! :)
Contech ScareCrow Outdoor Animal Deterrent 7.3" x 3.6" x 12.6"
ScareCrow Sprinkler Motion Activated Animal Deterrent
ScareCrow Sprinkler. Maybe I won't need fencing to keep the deer off my plants if I have a few of these