Err two phone sims people.

Only give work one number. Turn it off when on O's, G's or Leave. Have it set to divert to your "real" mobile when on Res. Save the number as something like "Doh work

" and give it an annoying ringtone. That way you will always know it is them, they can not

get you when you don't want and you never have to be recorded as being "unhelpfull".