Because you like JC Denton in Deus Ex Series
Veronica Sawyer
2355
Veronica Sawyer thinks that if you were happy every day of your life you wouldn't be a human being, you'd be a game-show host. See them in Heathers.
Damon Salvatore
3383
Damon Salvatore used to miss being human. Now he can't think of anything more miserable. See them in The Vampire Diaries.