Had same problem ................................... once.
Waited for the mailman then scooped up the shit and put it in neighbours mail-box. Then I just sat back and waited for him to stick his hand in checking the mail. Nearly pissed my pants waiting. He came home and checked the mail and got the perfect result.
Whilst he was washing his hand I told him to get the dog to shit in it's own yard. After a few words all sorted.