Lots of my neighbors walk their dogs. Seems like they don't think a thing about letting them pee or poop on my mailbox.
A while back I happened to be in the yard and a guy just held the leash while his dog did his thing on my mailbox. I yelled to my grandson J.J. "Be really careful where you stand when you get the mail, this guy just let his dog shit in front of the mailbox!"
The guy didn't even look up or say a word. But I haven't seen him do it again.
We do have a dog, but we don't let them do that. There is lots of open land for him to use.