NCIS: Los Angeles, Season 2

Kensi:
[Hetty gives Kensi a gift] Oh, that is the coolest thing I've ever seen.

Hetty:
I figured you'd like it. Like you it's both feminine and deadly. Therein lies its true value.

Kensi:
You think I'm feminine and deadly?

Hetty:
Among many things. It's what makes you so good at this job. The true challenge is knowing when to stop.

Kensi:
What do you mean?

Hetty:
The job. The importance of what we do, the excitement of doing it. It makes it very difficult to give it up. When the day comes for you to hang up your gun...

Kensi:
Oh?

Hetty:
And it will. You're going to want to come home to something more than a collection of antique weapons.

Kensi:
Unfortunately, most of the guys I meet... are trying to shoot me.

Hetty:
Not to worry. Sometimes you find them, or sometimes they find you. You just have to keep your eyes open