This is often referred to as engine knocking or end-gas knock. Brook started strongly knocking Saldivia down midway through the first round. Mark's mother is knocking on his door while crying. Fred intervenes, knocking the man down and losing his job. Sandman gets back up and assists Vulture into knocking down Peter. He is prone to tripping and knocking over tables. He slaps her, knocking her unconscious. American Billye Jackson dominated seven rounds including knocking Urquidez down. Winds topped , knocking down trees and powerlines and making roads impassable. He tricks the bartender into knocking Hiro out, then flees. He won by knocking out Davis in the fourth round. Ben battles Doctor Octopus, who escapes after knocking down debris. Frightened, he runs and falls, knocking himself unconscious. The horse throws Thomasin, knocking her unconscious. Some games offer a choice between killing or merely knocking out an enemy.