Death.
I used to be scared of dying, because I was afraid my ex would be devastated should anything happen to me, and plus I did not want the then-happiness to end soon, thus I took heed of ever doing dangerous stuffs.
Now, that fear is no where to be found anymore.
People may say, if you die, your family will be sad, etc. Yes they would be sad, I know, but we can never predict our departure.
If my time is up, it is. I would not fear it anymore.
Time to take risks and enjoy life while it lasts.