Neighbor kept letting his dog crap by my mailbox so I started giving it back one bag at a time
A guy a couple houses down kept walking his big lab past my duplex and for like almost two weeks there'd be fresh dog shit right by my mailbox every morning. Not off in the grass somewhere. Right by the post, so I had to do this dumb little sidestep every time I got my mail.
At first I figured maybe someone just missed it. Then I noticed it always seemed to happen after this same guy walked by with his dog, doing that fake distracted phone stare while the dog squatted.
One morning I caught it from my window. Dog does its thing, guy looks back, then starts walking off. I went outside and said, “hey, you gonna get that?” and he goes, “i dont have a bag.” Like that solved anything. I said then maybe don’t walk your dog without one, and he just shrugged and kept going.
That shrug pissed me off more than the actual crap, so I stopped being nice. I bought a cheap box of poop bags, and for the next week every time his dog left one by my mailbox, I scooped it up and dropped the tied bag on his porch. Nothing crazy, just neat little returns.
By day 3 he definitely knew. By day 6 he knocked on my door and told me I was being childish. I told him whats childish is thinking your dogs mess becomes my problem because your re lazy. Then he tried to say I could have just talked to him, which was insane because thats literally what I did first.
Anyway, after that, his dog magically never shit by my mailbox again. Dude suddenly discovered bags exist.
Maybe it was petty, but extremely effective!