Verified answer

I had this problem too. I asked nicely without response. Then every day I would scoop it up and put it in their front yard. He asked me one day wait was I doing. I told him his dog left this at my house and I was sure he wanted it back. It did not happen again.

I had the same trouble. I asked the owners nicely but no result. I then picked it up with a shovel and threw it on their patio. It still didn't work. I bought the spray and sprayed it along the property line and it never worked just got washed away. I finally got an air horn and everytime I saw them in my yard I would blast it just as they started doing their business. It finally worked!

try putting out mothballs or spraying bleach around . or in some pet stores they do sell stuff to discourage animals from doing that

get a bb gun and when you see the dog about to do his business plink him.it'll sting but not really hurt him. i use it on my neighbors dog..with his blessing...and now all i got to do is show the dog the gun and he runs off

...go do a pee pee and a wee wee outside its gaff...YOU!