Unless your instincts are terrible.
4 seconds sound clip from the The Lego Movie (2014) movie soundboard.
You can hear this line at 00:34:30 in the Blu-ray version of the movie.
Quote context
[...]
- No, let's not let Emmet try! I haven't had any training.
- That's okay. We'll start with how to become a MasterBuilder.
- Step one: Trust your instincts.
- Build something! Build something!
- Unless your instincts are terrible.
- I can't control it much longer!
- Emmet, we need to attach the wheel to something that spins around.
- We need to attach the wheel to something that spins around...
- Oh.
[...]