Dee-liteful simply Dee-liteful

I am he who holds the gaff tape.
The ninja who can crossfade.
I am keeping your show under the time limit.
I am the bringer of limitless black.
With one button, you are done performing.
I may enjoy your show, but I will never tell you.
I will accept a bottle of Jameson,
And then I will tell you I enjoyed your show.
Everything you worked so hard for is in my hands.
The stage.
The lights.
The sound.
The fury.
I am your best friend and your worst enemy.
I am your fringe technician.
And I am almost completed.

Lock up your daughters.