It's okay. Just admiring the shape of your skull.
6 seconds sound clip from the Fear and Loathing in Las Vegas movie soundboard.
You can hear this line at 00:04:56 in the Blu-ray version of the movie.
Quote context
[...]
- If so, well, we'll just have to cut his head off and bury him somewhere.
- 'Cause it goes without saying that we can't turn him loose.
- Jesus, did I say that, or just think it?
- Was I talking? Did they hear me?
- It's okay. Just admiring the shape of your skull.
- Maybe I'd better have a chat with this boy, I thought. Perhaps if I explain things, he'll rest easy.
- All right, listen. There's one thing you should probably understand...
- I want you to have all the background.
[...]