How can I prevent an irresponsible owner allowing their dog to poo on our front lawn when they refuse to pick it up? It’s been happening for a while however we caught the owner (a neighbour a few doors up) in the act yesterday. Partner asked the owner if he could please pick up his dogs waste but he refused and walked away. Partner went out and had to do it however DH left it bagged up on their doorstep after asking them to please in future pick up their dog waste (not the best idea I know) DH was met with abuse from the man and his awful wife and they threw the bags back onto our property. DH had to walk away as was getting irritated. I have reported them to the local council, however it’s clear they really don’t care so how can I deter the dog from coming into our property? I wouldn’t normally be bothered if they picked it up. I understand that dogs need to go and that I do have the biggest lawned front garden in our road. However if the owner isn’t going to clean it up I need to make my lawn uninviting to the dog. Any ideas? I’d be very grateful. I have charged up my ring door bell again but would a ultrasonic deterrent be any good?