Exactly the moment when all of my children, over the years, have managed to catch something ~ and the one year when none of them caught anything the eldest girl got herself knocked over by a car on the way home from school on the day they broke up.
I have spread measles, unknowingly, all over Holland by trotting round with a child who we thought had a sniffle and she developed full blown measles on the boat home. I have had the eldest boy diagnosed with "A mump" (No I didn't know you could get them singularly either) on the day before departure. We postponed that holiday by a fortnight and bugger me if half way through the delayed holiday he came down with the second mump.
At one time the local A&E receptionists used to greet me with the words "Hello again Mr Snoopy ~ which one is it this time?"