My lovely father-in-law is due to have heart bypass surgery in a couple of weeks time. The whole family adores him utterly and obviously we're pretty scared as it's a serious operation. My question is- what, if anything, should I be telling my 3 year olds about all this? They absolutely worship their "Daddo" and love to roughouse with him, talk with him, follow him round, stomp about pretending to be him, etc. How do I get them to realise that he's going to be feeling a bit frail for this sort of activity? And that their Nana, Daddy and Aunty may well be preoccupied and worried too? I don't want to scare them but they're used to seeing their grandparents at least once a week- and being spoiled rotten during that time!- so they're definitely going to notice that something is up if I just keep them away from the situation and tell them nothing.