[zcaveman]

I would personally assume that that is exactly what happened. There were four carts parked and the other three left. Whether you take the first slot or the second, third, or fourth, the parking space is still full.

My biggest bitch is with the parking spots in the shopping centers where a cart parks in the middle of the parking place instead or left or right so a second cart can park there.

The same for the mail stops where cart drivers think they will only be there for a "minute". Double carts is a simple thing.