I haven't accused them at all or even brought it up with them. I don't see what the point is and I know they feel bad about my son getting the chicken pox. I would never want to make anyone feel bad for something like that; that's just not who I am. However, I would have liked a warning. According to my doctor, chicken pox is very contagious a week before spots appear. I maybe could have taken extra precaution and would have tried to keep my son away somewhat. I wouldn't have asked them to keep their son home either because like momplus6 mentioned, it's not for sure that he would have gotten them. I think I'm just upset today because I see my son in pain and no parent ever likes to see their baby hurt or uncomfortable.