Frank strolled the sidewalk with his dog and saw a female neighbor coming toward him. He veered out on to the street, but the neighbor came closer to him, coughing.

"Stop! We must keep our distance!"

"Sorry!" said the neighbor, whimpering. "I haven't talked with anyone face to face in weeks."

"Just keep your distance." Frank backpedaled.

The neighbor put her hands in her pockets and scuttled away.

On his arrival home, Frank opened the free crowdsourced reporting app ...

"Female. Medium height and build. Lives at the marked address. Coughing. Violating distance protocol. Yes, I've reported this to the authorities."