He was drawn close, and felt the fellow's teeth sinking into his ear.

Like a flash, he surveyed his whole future and saw himself going one-eared through life, and in the same dash, as though inspired, his thumbs flew to the man's eyes and pressed heavily on the balls.

Men fell over him and trampled upon him, but it all seemed very dim and far away.

He only knew, as he pressed with his thumbs, that the man's teeth wavered reluctantly.

He added a little pressure (a little more, and the man would have been eyeless), and the teeth slackened and slipped their grip.
After that, as he crawled out of the fringe of the melee and came to his feet by the side of the bar, all distaste for fighting left him.
He had found that he was very much like other men after all, and the imminent loss of part of his anatomy had scraped off twenty years of culture.