Oh, shut up.
2 seconds sound clip from The Ant and the Aardvark (1969) - I've Got Ants in my Plans (S1E4).
You can hear this line at 00:04:03.398 in the Blu-ray version of the episode.
Quote context
[...]
- That's a good idea. I think I'll have a snack. And you're it.
- Sometimes in these situations, it's hard to keep a stiff upper lip.
- If you take my ant, you'll be sorry.
- Let go, come on. I saw him first.
- Okay, we don't have a coin so we'll flip you. What do you want, heads or tails?
- Heads.
[...]
