The planning meeting took place in management’s smallest room, with too many people and one narrow whiteboard.
Joyce drew three columns: Halima’s studio light, the common-area light, and what Asha could actually see. Musa prepared a coded source order. Bakari would control timing from security. Asha would record only what she observed. Halima would keep her studio in its normal post-adjustment setup except during the specific on-off intervals.
David looked at the whiteboard. “We’re doing too much science for something simple. If light enters a bedroom, switch it off.”
“If we use that rule,” Halima said, “my work changes even when the common lamp is responsible. And if I say the common lamp explains everything, I erase the part my original setup caused.”
Asha added, “I want the difference. Not a winner.”
That settled the purpose.
Before signing, Joyce asked each person to write what would make the test unfair. Halima wrote that Asha should not know which source was active. Asha wrote that Halima should not alter the curtain or lamp position halfway through a round without recording it. Musa added that the corridor fixture must operate in its real settings, not a demonstration setting chosen to look better.
They also established data boundaries. Interior bedroom photographs would not be circulated in the group. If a technician ever needed to see inside, that would require a specific invitation and purpose. David argued that room photographs might prove the impact more clearly.
“My bedroom is not the price of having a complaint believed,” Asha said.
Halima looked at her and recognized the sentence immediately. Proof did not create unlimited access.
Then came the communication rule. If a new complaint appeared outside test times, it would go through management or security. No direct call or visit at night.
“What if it’s urgent?” David asked.
“A light nuisance is not an emergency that requires crossing the courtyard,” Halima said.
Asha agreed.
They separated genuine emergencies—fire, medical concern, unsafe darkness—from ordinary nuisance. If the common system failed in a way that made stairs dangerous, safety would take priority even if temporary glare increased. Residents would be informed instead of left to assume the agreement had been abandoned.
The rules cost everyone something. Halima would have to pause client work at predetermined times. Asha would tolerate short test intervals. David would surrender direct confrontation. Management would own the common fixture problem instead of calling everything a private neighbor dispute.
At 8:00 p.m. on the first evening, Halima finished a client call minutes before the test began. She did not ask them to move the schedule. She saved her file and followed the sequence. Across the courtyard, Asha kept her curtain in the agreed position even though she wanted to settle down for the night.
Bakari sent only: **Round 1 started.**
Musa changed sources according to his coded order. Asha reported levels without naming causes. Nobody was entirely comfortable, which made Halima trust the process more.
On the second evening Halima had a color correction on screen when the 10:00 p.m. round began. She stopped anyway. Bakari sent the code. Asha’s first report came three minutes later: **A sharp line is visible on the right.**
Halima looked toward the courtyard but could not tell which source Musa had activated.
For the first time, she too was inside the test without a preferred answer.
When the meeting ended, Joyce read every rule back aloud. Halima corrected one phrase from “resident must not contact another resident” to “unplanned complaint contact is not required.” She did not want a safety rule to become forced social isolation. The goal was consent and routing, not pretending neighbors could never speak.
At 10:00 p.m., Bakari received the first report without the name of the light source that had been switched on.
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