Then there was a sharp hiss and blow behind him; his horse snorted and leapt forward, almost unseating him, and then, still snorting with head raised and jerking, dashed at the slope.
"By What Authority?"
Robert Hugh Benson
Respect for the right of the individual to self-will was so deeply ingrained as to make the deliberate unseating of another's reason virtually impossible.
"The Short Life"
Francis Donovan
His horse leaped forward, almost unseating him....
"A Fool There Was"
Porter Emerson Browne