Grey's Anatomy, Season 5

Mark:
Pain and agony for a little bit of pleasure, I get it.

Callie:
If that's bad, why don't you stop sl— doing what you're doing.

Mark:
Because it doesn't feel bad when I'm... doing it. It's good. It's great. And maybe if you weren't so scared of getting burnt you'd feel the same.

Callie:
You know, I used to walk tall around here. I used to walk tall. And then came George. He took off at least an inch, and Erica went and left me that shaved off a few more. I got shorter. All that humiliation, it makes you shorter, so yeah, I am scared of getting hurt, because one more personal disaster right now would cut me off at the knees.