Hi guys! my family and I recently got our driveway redone and we have a serious problem with it. we got our driveway filled with little pebbles and the cats in our neighborhood are mistaking it for their own personal litter box.I love cats and all, dont get me wrong--yes, When I went outside to run some errands, there was cat pood ALL OVER. any suggestions on how to prevent this from happening again?! please help!