I knew there was a reasonable explanation.
3 seconds sound clip from The New Adventures of Winnie the Pooh - Tigger Got Your Tongue? / A Bird in the Hand (S3E10).
You can hear this line at 00:07:28.513 in the Blu-ray version of the TV Series.
Quote context
[...]
- That's the last time they'll use the south tunnels.
- Huh. There's a reasonable explanation for everything. Things just don't disappear.
- Tigger, what are you doing with my vegetables?
- No, no, no. Excuses won't do you any good. I saw you.
- I knew there was a reasonable explanation.
- But, Rabbit, Tigger says he was saving your vegebibbles from the nobody.
- Not that nobody business again.
- Have you not seen one around, Rabbit, that perhaps sounds like Tigger?
- Oh, certainly. I don't see them all the time.
- Who do you think I grow my vegetables for?
[...]