The Vampire Diaries, Season 5

Stefan:
Look, I thought that killing Silas would allow me to move on with my life, but I was wrong. I spent my summer locked in a safe. One minute, I think I'm fine, the next minute I feel like I'm dying all over again.

Katherine:
Oh. Classic PTSD. You survived a pretty traumatic event, and now you're back, and you've got nothing but free time to just relive that terrible experience in the safe. Well, allow me to give your life a purpose. Help me with one little favor.

Stefan:
Should have known this was gonna come around to you needing something from me.

Katherine:
I'm just trying to help. What would I know about post-traumatic stress? I only had my newborn ripped from my arms by my judgmental father ,and then had to run 500 years after my entire family had been slaughtered by a psychopath. But hey, that didn't have any lingering side effects...