The post office works according to its own personal schedule. They want to take a break during working hours, and drive everyone outside to wait, boorish attitude towards customers, constantly dissatisfied postal employees take out their dissatisfaction on customers. When the main management has already put things in order and the post office will work as a state-owned company on a working schedule, and not as the post office staff pleases. (if they want to, they will open it, if they want to, they will close it during business hours.)