ROCK HILL S.C. Anytime customers at the Fatz Cafe here need something from server Sheila Hall, they can simply page her through a wireless device on the table. Asoda refill, another appetizer, the check - whatever the request, Hall instantly knows she's needed by the vibrating and flashing symbol on her clunky wrist device.Hall loves it."It lets the customer feel in control, and I don't feel out of control," said Hall, who has been waiting tables for the past year and a half. "It ...
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