Mourning.
I don't understand why people get so upset when someone dies, that it takes over their lives. I don't mean to sound insensitive, because I know it sucks when someone close to you passes away, but come on... move on with your lives.
What I'm trying to say is, people die. It's inevitable. You can't stop it from happening. You know it's going to happen sooner or later so why practically ruin your life mourning over it?
Go ahead, be sad for a while but don't let it ruin your day. You're just wasting your life when you do that.