My neighbor let her dog use my lawn as a toilet every morning for six months and never cleaned up once — I stayed polite until she made one comment I couldn’t forget, and by the next morning I’d taught her a lesson without raising my voice once.

I simply placed one small bagged deposit in the center of each decorative stone along her front walkway.

Six stones.

Six reminders.

One for every month I had spent cleaning up after her dog.

There was no note.

No accusation.

No explanation.

Nothing linking it to me except the obvious.

She would know.

I would know she knew.

And she would know that I knew she knew.

That was enough.

I finished at 7:32.

Then I went home.

Washed my hands.

Started coffee.

At 7:38, I heard her