While trying to figure out the queue at the Kroger Pharmacy, it's rather unclear who gets to go first, so in this confusing queue system I get aggravated with store management over the length of my wait because... $q,$

Unfair waits feel longer than equitable waits

Unexplained waits feel longer than explained waits

Pre$-$process waits feel longer than in$-$process waits

$$ Unoccupied time feels longer than occupied time