⟩ Explain me why do we see fire department crews at the store?
Because the crews work a 24-hour shift, they must eat their lunch and dinner at the station. At times firefighters all eat the same meal, as a group. The crews pay for their food out of their own pockets. So, after the equipment is checked and the housework completed, one of the fire trucks will then make a quick trip to the grocery store to purchase the food for the shift. All crews remain in service to respond to calls during this time.