It's a little different in the practice room.
5 seconds sound clip from the Rush Hour (1998) movie soundboard.
You can hear this line at 01:21:03 in the Blu-ray version of the movie.
Quote context
[...]
- It's okay. She's a professional.
- Yes, just give me a second. Just give me a second.
- There's a trigger on this vest. It'll blow if I take it off.
- Haven't you done this before?
- It's a little different in the practice room.
- Everybody take cover. We need more men down here.
- Need some help down here, damn it!
[...]