Angel, Season 3

Gunn:
You got to promise not to laugh.

Fred:
I promise.

Gunn:
It's gotta come from the heart.

Fred:
Will you stop being such a little girl? I said, I promise.

[Gunn steps out into Fred's view and spreads his arms so she can get a look at his tux, not looking at her. Fred's eyes go wide. After a moment she bursts out laughing.]

Gunn:
This is what your promises are worth? I'm having a lot of trust issues at this time in my life.