On a dime

There are moments in all our lives when things turn on a dime. When you meet your child for the first time, you loose someone close to you, you hear the word cancer. I came across this here.

There are moments that mark your life, moments when you realize nothing will ever be the same. And time is divided into two parts, before this and after this. -unknown

My first thought when I read it was cancer. Before I had breast cancer my first thought would have been Lucy. Hopefully one day cancer won't be my first thought, I pray one day cancer will be replaced once again with Lucy or something equally as happy.

What's your moment?