history: I was waiting in a check out lane for quite some time. A new cashier came and she took the people at the back of the line. I was in a check out lane for a while waiting when another cashier comes alone and takes the people in the back of the line.
current: that is literally the worst, the people should have atleast told you to go ahead  first! 
next: Oh I know. People just gladly go, but the cashiers should be taught to take the next person in line.