Guess I'm as much to blame as Pooh is.
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 00:18:54.240 in the Blu-ray version of the episode.
Quote context
[...]
- Look on the bright side. Maybe you'll get a couple of decades off for good behavior.
- Oh, I can't leave Pooh all alone for such a very long time.
- After all, he is my best friend and, well, best friends should stick together.
- You want to stay in there, too?
- Whatever you say, Piglet, old pal.
- Guess I'm as much to blame as Pooh is.
- Perhaps I ought to be in there, too. Not that anybody'd really care, mind you.
[...]