NCIS: Los Angeles, Season 2

Deeks:
When I was 11 years old, my old man was... one drink away from killing my mom and me.

Hetty:
Until you shot him in self-defense.

Deeks:
...38 revolver that I used - Ray's the one that gave it to me.

Hetty:
You know, some might say you've paid that debt. Rather than send him to jail, you took him under your wing.

Deeks:
Let's be honest. I turned my best friend into a snitch for $100/week. If he gets himself killed, it's on me.