Sparky knew that Bumper would run and that he could chase him over the field.
4 seconds sound clip from the Oliver & Company (1988) movie soundboard.
You can hear this line at 00:25:35.393 in the Blu-ray version of the movie.
Quote context
[...]
- Sparky jumped to his feet, and ran toward Bumper barking loudly. Woof. Woof.
- Well, that's because you're a dog.
- Sparky knew that Bumper would run and that he could chase him over the field.
- But Sparky would never catch him or hurt him because Sparky was not that kind of a dog.
- This is the big one. We've got two days to do or die.
- Dodger, you keep an eye on the new kid. Show him the ropes.
- Dead men do not buy dog food!
[...]