Here's another petrol station special - people, who when the pumps are very busy, wait for the one they think will be free first. And in the process they block off half the entrance to the forecourt for other drivers.
When the petrol station is this busy is it not just better to queue behind someone rather than blocking off almost all the pumps?
When the petrol station is this busy is it not just better to queue behind someone rather than blocking off almost all the pumps?