Not we... Two other characters will steal them.
8 seconds sound clip from the Yogi's First Christmas (1980) movie soundboard.
You can hear this line at 01:09:58 in the Blu-ray version of the movie.
Quote context
[...]
- I swiped that during last year's Christmas carnival. Took it off a snowman... This one too. His elf.
- Hey, then you're the mysterious character who caused all the trouble last year.
- Herman, would you like to unravel this year's carnival too?
- I've been trying, but this is the last day of the carnival.
- Everybody's looking forward to the big tree-trimming party tonight.
- Ah-ha! We steal the ornaments.
- Not we... Two other characters will steal them.
- Look, dear, old Dad, a reindeer.
- So it is, my boy, just like the kind that pulls Santa's sleigh.
- How do you like that? Someone tried to lasso that poor creature.
- Snively? Come on, dear, old Dad, let's get him.
- All right, Snively, come out of there.
[...]