"You should have seen the blood!"

This was said by Jack after he killed his first pig, if you compare it to the first interaction with pigs on the island he could not slit its throat and said that the blood would have been too much. Now when he comes back with the pig he is excited with all the blood she spilt and the violence it took and seeing that his innocence disappeared thanks the his inner beast and the mask he wore. (page 70)