A restaurant's zero-hours contractA contract that offers no guaranteed hours of work. You attend only when required, and you can turn down work that's offered. You're usually a worker rather than an employee under this kind of contrac... says staff can't take shifts anywhere else. That clause is void; a workerA legal category that sits between employee and self-employed. Workers are entitled to certain rights including national minimum wage, paid holiday, and protection from unlawful deduction from wages, ... can pick up a second zero-hours job at another venue without breaching their contract.