I'll be right back, kid. Don't you turn any somersaults when I'm gone.

6 seconds sound clip from the The Last Gangster movie soundboard.

You can hear this line at 00:10:16 in the Blu-ray version of the movie.

Quote context

[...]

- Yeah? Well, there are a couple of storks waiting for you.

- What?

- C-o-p-s. Did I spell it right?

- Well, they're here early.

- Listen, honey, I got to go out for a little while. You just stay here and be quiet.

- Doc will be right over, hey?

- Oh, you go away from me, Joe?

- I'll be right back, kid. Don't you turn any somersaults when I'm gone.

- Joe Krozac, Junior.

- Well, how are you, boys? Glad to see you. What's up?

- You hear about that target practice down at the Rod and gun club?

- Yeah, and I'm shocked. You know what I mean. Shocked.

[...]