I have no problem with little ones turning up with colds, tis life, but conjunctivitis? It's so contagious. My other guests (who don't know her) were astounded and visibly annoyed. And she stood there and said "oh sorry, X has conjuctivitis but I didin't want him to miss out". Now I'm worried that DS is going to get it (he ran up and gave the little boy a hug before we realised) and miss out of lots of Christmassy things we've got planned, and worse pass it on to the family just in time for Christmas. He's had it once before, DH ended up with it, his grandfather and cousins too and it took two weeks to get rid of per person. So, am I just being precious or would you say it was unreasonable to take your child out to a party with conjunctivitis?