My husband works shifts and a lot of weekends, so is home sometimes during the week. I'm always upfront about this during interviews, and try to schedule them when he is home as he's my back-up if I have a doctor's appointment or something, as he can usually rearrange his schedule to be home. He will also stay with the little ones if the weather is crappy or somebody is still napping when school gets out, so I can run and collect the older kids. The parents know and have ok'd this. We both have police checks with a vulnerable sector screening, and that has helped parents be ok with this. I've never had a problem, and I think having him at the interviews helps. He says hello, talks to the kids, and keeps my own kids entertained. Just being upfront about his presence has been enough. And I agree with the above posters - it's HIS house that these kids are invading every day, and if he wants to be home, he is free to do what he likes.