What wording would you include in a document that each staff member must sign before being allowed access to the information systems in your workplace (a.k.a., an ethical computing statement)?

If you were part of a committee or department that was in charge of developing and revising documentation, what wording would you include in a document that each staff member must sign before being allowed access to the information systems in your workplace (a.k.a. an ethical computing statement)? In your work setting, how might you teach and enforce ethical use of information?