Following my post in the wwyd? section of the board, I've been looking at deterrents to stop next door's dog using my drive as a toilet spot, as the owner is not good at clearing it up. Does anyone have any experience with the sonic deterrents? Do they work? Would they bother the dog when it is in the house, as if so it would be no good? Any advice on other deterrents that could work would be much appreciated!