He swung round on his son.

William was bigger, but Morel was hard-muscled, and mad with fury.
"Dossn't I ?" he shouted.

"Dossn't I?
Ha'e much more o' thy chelp, my young jockey, an' I'll rattle my fist about thee.

Ay, an' I sholl that, dost see ?" Morel crouched at the knees and showed his fist in an ugly, almost beast-like fashion.

William was white with rage.
"Will yer ?" he said, quiet and intense.