I don't know. Anyone who acts that innocent must not be as innocent as he acts.
5 seconds sound clip from The New Adventures of Winnie the Pooh - The Good, the Bad, and the Tigger (S4E4).
You can hear this line at 00:07:22.852 in the Blu-ray version of the TV Series.
Quote context
[...]
(Tigger imitating train chugging) Toot! Toot! Hoo hoo hoo hoo!
- Say, buddy bear, could you feed the furnace till I can figure out how to stop this choo-choo?
- Perhaps the furnace would like a smackerel of honey. I know I would.
- Pooh? But Pooh wouldn't take a train. Honey, perhaps, but not a train.
- I don't know. Anyone who acts that innocent must not be as innocent as he acts.
- Just another case of a bear gone bad.
- I guess I'll have to do it, but I'll need some deputies.
- Oh, look, Tigger. Piglet's giving us a parade.
[...]