Sister in law stays in a 4 in a block flat garden.
Shares the garden with 1 neighbour HUGE!
Sister has 1 dog neighbour has 2.
About 2 months ago my SIL Stopped cleaning all the dog mess & just her own.
Neighbour got the hint.
Last night the dog needed out in the dark obviously SIL couldn’t see the poo?
Got up at 6am to let the dog out, clean the poo and the neighbour had picked it up in a bag & hung it on her door 
Petty Betty’s ðŸ˜