I've just come back from a group camping weekend - about 20 or so families with kids of different ages. There was a bloke there with a child of 2 1/2 who was clearly spotty. He looked very uncomfortable when I walked into the communal cooking/hanging out marquee on Saturday morning with my DS who is 16 months and after a few minutes, lent forward and confessed that his DS had chicken pox and his spots had not yet healed over. At the moment I'm not working and so it wouldn't have been a total disaster if my DS had caught it off him, but given that he didn't know everyone there and there were loads of potentially pregnant women as well as a lot of other kids, I thought it was a bit selfish to have brought his son. AIBU?