T-Rex doesn't want to be fed. He wants to hunt. You can't just suppress 65 million years of gut instinct.
11 seconds sound clip from the Jurassic Park (1993) movie soundboard.
You can hear this line at 00:46:05 in the Blu-ray version of the movie.
Quote context
[...]
- What's going to happen to the goat?
- What's the matter, kid? You never had lamb chops?
- I happen to be a vegetarian.
- Eventually you do plan to have dinosaurs on your dinosaur tour, right?
- The Tyrannosaur doesn't obey any set patterns or park schedules.
[...]