Mark my word, one of these days some of your childish pranks are going to backfire on you.
6 seconds sound clip from the Foghorn Leghorn - Feather Dusted (1955) Warner Bros. Merrie Melodies theatrical short.
You can hear this line at 00:06:24.670 in the DVD version of the film.
Quote context
[...]
- That boy's as timid as a canary at a cat show.
- I'll have, I say, I'll have to lure him in.
- Look, I say, look, boy! I'm a battleship. Let's see you sink me.
- And you, always creating trouble, you good-for-nothing loafer.
- Mark my word, one of these days some of your childish pranks are going to backfire on you.
- Ma'am, I say, ma'am, you are so right.
- Hey, what, what, I say, what, what... Who, who...?
[...]