Lin Mo's electric car made a tricky S-shape in the evening traffic. The Malatang packaging bag in the car basket rubbed against the guardrail, and the spilled red oil made an ugly flower on the car seat cover. He stared at the red countdown on the navigation screen of his mobile phone that was constantly beating, and cursed - there were still three minutes left before the timeout, and the five yuan and two discount for this order would be wasted, and the landlord had just sent a WeChat message at noon, saying that the rent would be increased by three hundred next month.