Near the valve, I found disturbed soil.
A rusted crowbar.
A crushed lawn chair.
A cigarette butt still faintly warm.
Someone had dug a shallow trench and apparently discovered the actual main sat deeper than expected inside reinforced protection.
I called Nadia.
Then the county water-board contact.
Then I installed cameras.
Not booby traps.
Not anything dangerous.
Cameras.
Motion lights.
A reinforced steel outer enclosure around the valve.
I also placed a harmless fluorescent marking powder around portions of the exterior access area—something used in security and training contexts to show contact.
Two nights later, motion alerts woke me.
A man climbed the outer fence.
Fiftys.
Cargo shorts.
Backward golf visor.
T-shirt that literally said HOA STRONG.
Subtle.
He worked at the valve enclosure with a wrench.
Touched the marked surface.
Then apparently noticed powder on his hands.
He jerked backward.
Caught his heel.
Fell into a low branch.