I was standing in queue at 7AM and a suit and tie guy was loudly berating an employee on his cellphone. I finally had enough, turned around and hollered, "STOP YELLING AT ME! I'M RIGHT HERE!" That shut him up.-------------Another surefire trick is to repeat whatever the phoneboob says, just loud enough so he/she can hear it. It causes a mental short circuit - the brain can't handle the echo.
Leave a comment.. Let me know what you think! :)