You have to do this by the numbers. Even one thing out of sequence, you could trip the detonating device immediately.

9 seconds sound clip from the Longstreet (Ep. 6 Spell Legacy Like Death) TV Series.

You can hear this line at 00:17:52 in the DVD version of the movie.

Quote context

[...]

- Okay. Little present, Mike. Lose it, and your a brain surgeon without a scalpel.

- Now, start loosening the screws, gently.

- When the plate's loosened, take a deep breath, and check inside without pulling the plate.

- What for?

- A wire, a pin. Maybe even a clothespin. Some kind of mechanical trigger that has to be disconnected before you get to the guts of the thing.

- You have to do this by the numbers. Even one thing out of sequence, you could trip the detonating device immediately.

- Now, remove the back panel.

(buzzing)

- What's that?

- You just blew yourself, and all of us, to Kingdom Come.

- What's going on in there?

- He's learning to disconnect a bomb.

[...]