Suppose I ought to tell the others they weren't invited, either.

5 seconds sound clip from The New Adventures of Winnie the Pooh - How Much is That Rabbit in the Window? (S1E10).

You can hear this line at 00:10:34.586 in the Blu-ray version of the TV Series.

Quote context

[...]

- They forgot my birthday. And after all I've done for them. Borrow, take, and not as much as a birthday in return.

- Why, they just don't realize what a special friend I am. Why, if they didn't have me, I wouldn't be here. Have they thought of that? No!

- Well, I'll show them all. I'll go some place far away, some place where I'll really be special.

- Looks like Rabbit's going on vacation.

- Just like him not to invite me along, thank you very much.

- Suppose I ought to tell the others they weren't invited, either.

- Well. Well, well, well. I'm on my way already.

- Hey, what's the big idea?

- Never have I seen such an extra special rabbit. I'm going to put him center stage, where someone's sure to see him, buy him, and give him a good home.

- Ah. Special at last. Huh. None of these other toys have a sign like mine. I knew I wasn't appreciated back home.

[...]