I just know Ben's up to something.

2 seconds sound clip from The Ant and the Aardvark (1969) - Never Bug an Ant (S1E6).

You can hear this line at 00:03:11.360 in the Blu-ray version of the episode.

Quote context

[...]

- My, my. Now look at all this delicious sugar.

- Here's a big old rock in the way. Lucky for me, an ant can lift 100000 times his own weight. Kind of makes a fellow proud.

- Maybe I should've been a doctor. Then I could prescribe myself a pill.

- Looks like I'm gonna need some help with this. Hey, pal. How's about giving me a hand here?

- I'll do better than that. I'll give you a hand with a big club in it.

- Oh, thanks, pal. I never could've made it without you.

- I just know Ben's up to something.

- I better move this anthill so he don't trip over it and hurt himself.

- Now, to get back to my pad and close the trapdoor. Never know, it just might rain.

- This ant remover is just the thing. I'll remove him from his house and into a better neighborhood. My stomach.

- If that ant got half of what I got, he's in big trouble.

[...]