Why don't you pick on someone your own size, small as it is?
6 seconds sound clip from The New Adventures of Winnie the Pooh - A Very, Very Large Animal / Fish Out of Water (S1E19).
You can hear this line at 00:05:53.560 in the Blu-ray version of the TV Series.
Quote context
[...]
- Oh, dear. I threw it so far, even I can't see it.
- Well, if there's anything else I can do for you, just call.
- No. You've done quite enough. Thank you.
- And what do you think you're doing in the garden of my very small friend Rabbit?
- Why don't you pick on someone your own size, small as it is?
- Oh, dear. I'm not so very large as I thought I was. Oh, dear!
- But, Piglet, we tried our best to help.
- We was only trying to do it for your own good.
- Well, good is just to go away, so you won't have to waste your time on me.
- I'm just too small to be around.
[...]