My sister worked at a deli once and some jerk-off answered his cell in the middle of placing his order with her. And get this - he told her to leave while he finished his call, because it was a private conversation!
Hello? A private conversation in the middle of a grocery store? And just where was she supposed to go? She was behind the counter!
She replied to jerk-off, "No. I can't leave; I work here, why don't YOU leave and finish your private conversation?"
I think signs dealing with cell phone talkers should state: "There will be a $5.00 charge if you interrupt the flow of business by yakking into your almighty cell phone."