When the gas pumps are full, there are 7 open spots in front of the store & people that just filled with gas leave their car at the pump to slowly rough ridin' stroll inside rather that pulling into a spot in front of the store.
Also, when there’s 2 pumps in a row & someone stops at the 1st pump instead of pulling through to the 2nd pump. 90% of cars have the gas tank on the drivers side.