Toe the line of athletics where it describes runners poised at the starting line, and in the context of behavior where the miscreant is expected to "toe the line." The first published use in a political context was in March 1826, where Willie Mangum of the United States House of Representatives proposed that "every member might 'toe the mark'." The behavioral use also stems from around that time. The term continues to be used in the context of cross-country and track and field running, although sometimes also symbolically in bicycle races to be at your mark along the starting line before a race.
Destroy All Humans! Furon DNA locked inside human brain stems in order to save his race from cloning themselves into extinction. In "Destroy All Humans!", Crypto's objectives also include investigating what happened to his previous clone. "Destroy All Humans! 2" features Crypto hunting for revenge, after the KGB try to assassinate him and successfully destroy the mothership and his mission officer, Orthopox, as well as exterminating the Furons' enemy from the Martian War, the Blisk. "Destroy All Humans! Big Willy Unleashed" involves Crypto protecting Pox's new fast food chain using a giant robot mech disguised as the restaurant's mascot, called "Big Willy". "Destroy