Emergency Fan Repair
It always happens; it's a Friday or Saturday just before dinner service starts, you're completely booked with reservations and your exhaust hood stops working. Without a working exhaust system, you can't cook for all those guests waiting to try your fantastic food.
You could try opening anyway but these three things could happen:
You "smoke out" your guests in the dining room.
Your cook passes out from all the excess heat.
The heat buildup sets off the fire suppression system in the hood, closing the restaurant for at least the rest of tonight's service and bringing you a BIG bill to have the system recharged.