I Shamed a Zero-Tip Ghost—Then the Knock Went Viral and Turned Dangerous

The lobby smelled like wet boots and old carpet shampoo. The overhead lights flickered like they were tired of being alive.

And taped to the glass door—right at eye level—was a fresh sheet of printer paper in bold block letters:

NO SOLICITING. NO LOITERING. NO UNAUTHORIZED VISITORS.
DELIVERIES MUST REMAIN OUTSIDE THE BUILDING.

Underneath, a second sign:continue reading …