Cascade of Rude
It is in our DNA to watch what other people do, and to copy if it seems to be a good idea.
A few years ago, I noticed that a few people at self serve gas pumps would leave their car at the pump, when they went inside to buy a Coke (tm), or use the rest room. Why move to a parking space?? Your time is valuable!!!! Rude?? So what.......you don't know these other people, and other people do it, so why not you???
Yesterday I was at a local station with 4 pump lanes, each with 2 sides, and all pumps were blocked, mostly with unattended cars. Each line had several impatient drivers waiting for a pump. The parking area was almost empty. It was no big deal to me, because I wasn't on "empty", and I just went to another station later in the day,,,,,,,,,,,,I just thought it was funny.