First rule of #vending - assume there will be no food, regardless of what the event page says, or that you will not be able to obtain/eat it in a timely, nonstock-damaging way. Bring your own lunch.
@Clundoff after all, you can't eat Vendobionta. They all went extinct at the dawn of the Cambrian, perhaps devoured by Cambrian predators. Then the ICS changed the name of the Vendian to the Ediacaran, and all the jokes went extinct as well ...