New role, shift work, told it would be a 'fairly' stable pattern mostly a combination of 2/2/2 pattern per cycle, except when someone is on leave (and then less or no day shifts). Colleague has boasted about not having to pay for childcare ever despite both her and husband both working full time with shift work (different employers).This has been facilitated because she request shifts around her husbands roster unofficially and the person who does the roster gives them to her at the expense of her colleagues. This is going to mainly be me as we are opposing shifts. This means she will request say all late shifts meaning I would get stuck with all early shifts. This wasn't what I signed up to when I took the job but the emotional blackmail has started and I know she wants the arrangement she had with my predessor to continue. I really have no interest in her childcare woes and think she needs to get paid help in. She's been very lucky for so long but with new staff things will change and she must see this. How to deal with this diplomatically but firmly? to be clear this isn't an HR arrangement she has, she has just buttered up the man who does the roster over the years.