Why don't you speak up about it? I have ever told someone off
before cause I just got off work, was tired, on morning shift the
next day, there were long queues everywhere including the Express
Counter, and the cashier was trying to tell the bloke to queue at
the other counter cause he had too much stuff, he was raising his
voice trying to kpkb but someone told him off and the rest of us in
the queue more or less joined in! 
