I've just found out that our (adult male) friend who was round here for New Year's Eve/Day has shingles. Apparently he's had it since Christmas Eve but didn't realise 
DH has already had chicken pox & shingles. DC aged 7,4,1 have not had chicken pox yet. I have had chicken pox as a child. What, if anything, is likely to happen? Obviously we can't do anything about it now but at least I can watch for possible signs.
Hoping that our friend gets better quickly, it's his birthday soon, too 