It's not a chemistry set.
3 seconds sound clip from the Bad Boys (1995) movie soundboard.
You can hear this line at 00:52:16 in the Blu-ray version of the movie.
Quote context
[...]
- Mike.
- So explain it to me. We've got a problem with our chemistry set?
- He knows it ain't a chemistry set, asshole.
- The cutting agent is a highly volatile substance. The ether...
- I'm not a fucking chemistry teacher, Elliot.
[...]