Every Sunday, teams from GeoPomona Waste Management move through Harare's streets with shovels and disinfectant. They are not collecting rubbish. They are cleaning up human waste, left on open ground, because the public toilets meant to receive it either do not work or do not exist.

Mai Chibaya has been queuing since 5:40am. She knows this because the man behind her checks his phone every ninety seconds and announces the time like a town crier nobody asked for. She does not need him. She has the queue in her bones.