- Why are you so very up, Piglet?
- Because down is so very wet.

6 seconds sound clip from The New Adventures of Winnie the Pooh - Pooh Skies / April Pooh (S3E5).

You can hear this line at 00:13:54.480 in the Blu-ray version of the TV Series.

Quote context

[...]

- Hmm. I wonder if this April Fool is someone to be afraid of or not. I think I shall have to ask him right after breakfast. Or perhaps lunch.

- Help! P-P-Pooh!

- Oh, my. That 'Help! P-P-Pooh!' sounded very much like Piglet.

- Oh, dear.

- Piglet, you called for help and for Pooh. We're here.

- Please come in, Pooh Bear, if you're sure you're not a flood.

- Are you here, Piglet, or just your voice?

- I'm here, Pooh.

- Why are you so very up, Piglet?

- Because down is so very wet.

- Oh, I see. Don't I?

- But, Pooh, when I woke up this morning, I found out that my house was under water.

- That's funny. It didn't seem to be under water when I came in.

- It didn't?

- Oh, dear. Look.

- Oh, my.

- And over there.

[...]