Seriously, though, would it kill you to give us a scooch more detail as to what is going on?
Where do you live? Is there a dog waste ordinance there? If you feel like a pussy asking them to stop, and they won’t stop when you do ask them, then take it to The Law.
Yes, apparently. Per OP, just “get it” on your own.
So far I get that someone’s dog took a shit in the OP’s azaleas, and the OP is buying a gun instead of a giant’s pussy.
It’s cheaper in the long run; a giant’s pussy has to be financed these days, the way the market is.
My sister solved it with a bag dispenser, a roll of bags and a sign.
I miss the days when one would write and send a letter to the Chicago Reader and enjoy the paperbacks.
Now, everyone thinks “The Straight dope” is a platform for jerking off in the mirror and saying their own name over and over.
Well, that certainly cleared everything up.
Given your original question, the lack of details, and your statement that we should just get it, I’ve come up with the definitive answer for you.
Teal green, a yardstick, and a quart of witch hazel. Waning or waxing moon only!
Including you, it would appear.
I burning your dog poo! 
Cool.
My thought is to clean your yard with a bag and spade when he is mowing his yard. Work on his guilt.
If that fails, the sign.
If the sign fails, the burning bag.
A friend of mine had the same problem. He said he solved it by talking.
What he said is that he told the neighbor he’d found that the solution was to drip just a bit of bacon grease onto the dog poo, and the poo just disappears. Because, it seems, a dog will eat anything covered in bacon grease.
Bonus points if you let your neighbor catch you dripping bacon grease onto dog poo prior to telling the story.
I like this.
I’m with you on this one, Claude. Don’t let that bitch dog turn you into a bitch, too. The next time you see them outside, run into your front yard, rip your shirt off, eat a handful of turds, and yell “RRARRRRRR!!!” while staring them in the eyes.
They will get the picture.
I have no interest in your dog poo issues but I’m so saving the link to this thread to use in a future thread about gender:
Such an excellent “Exhibit A”
Get a bigger dog and leave bigger poos in their yards.
Better yet: get a spitting llama.
Mirror’s a hindrance more than a help, sometimes.
Because the kid may get dirty and …? Help me out here.
To bad none of y’all are betting people. I would have bet any amount of money the join date of the OP would’ve been this month.
This is one of his tamer, um, episodes.