Nannies take care of your children, forming a strong bond and often becoming a part of the family. Yet in some families, the relationship between the parents might be strained, and one partner feels the other might become interested in the new caregiver. To avoid the possibility of a nanny interested in hitting on a married parent, focus on hiring a professional nanny with a strong background and recommendations from other families. Remember, you are hiring a nanny to act as a parental figure while you are not around, and a professional nanny will absolutely not see a flirtation with one partner as appropriate behavior.