Just when we're least expecting it...

3 seconds sound clip from The New Adventures of Winnie the Pooh - Where Oh Where Has My Piglet Gone? / Up, Up and Awry (S2E7).

You can hear this line at 00:15:36.425 in the Blu-ray version of the TV Series.

Quote context

[...]

- Everybody's always sayin' what goes up must come down. With any luck, it'll work both ways. What goes down must come up. 'Course it's just a theory. Won't know for sure till we try it out.

- Why, Eyeore! I believe it's going to work!

- I've called this emergency meeting because it seems Pooh Bear has taken our joking seriously, and decided to fly.

- But, Rabbit, Pooh can't fly.

- Of course he can't fly. And we have to stop him.

- Until the skies are free of Poohs, none of us will be safe.

- Just when we're least expecting it...

- Pooh really is trying to fly.

- I believe I would have stayed up that time, had I not come down.

- Why, the whole idea is hippoposterous! Isn't it? Of course, it is... I think.

- I know! We'll ask Owl! He'll know if Pooh bears were meant to fly.

[...]