Good Night and Good Bye

Is it just me or do you make sure you kiss your kids goodnight and goodbye and tell them you love them in case they die or you die?

I mean, I do it because I really do love my kids and want them to "have sweet dreams, sleep tight and not let the bed bugs bite" and to "have a great day at school/camp/etc." But I also look at them a moment longer in case it is the last time I see them. Sometimes I wonder if I'm the only one that does that because I'm insane and maybe a bit superstitious.