My two younger stepkids (8,9) spend every other weekend and half the holidays with us. For the last few months they have been completely infested with nits. There were bouts in the past (normal for this age), but usually cleared up within a week or two. My husband has said to his ex many times that she has to deal with it and comb the kids hair everyday. He has suggested that she give the boy a skinhead and the girl has her hair in a plait or at least a ponytail whenever she goes out. None of this has taken place. When we had them for a week in italy over the last holiday both my son (19 mo.) and I (7 months pregnant) got nits. My husband has a skinhead so he is immune. We also spent an hour each day of our holiday combing out their hair and I spent the following week combing out mine (long and very thick and wavy) and my son's. My husband has threatened his ex that if she doesn't deal with the nits he won't have the kids any more until she does. So far he hasn't followed through, but I'm not sure that at 7 months pregnant working full time with a toddler, I can continue to handle the extra time, stress and work that it entails (laundry, hair combing, cleaning). If their mother was truly trying to deal with the nits I would probably be more sympathetic, however given her track record, she is more than likely doing it on purpose. Am I/he being unreasonable to say enough is enough and the kids can't come again until the problem is sorted? I know it would be hard on the kids, but at what point is it fair to put me and my child first?