The line comes from RoboCop, the 1987 sci-fi action film directed by Paul Verhoeven, where the ED-209 enforcement droid is unveiled by Omni Consumer Products for urban pacification. During a boardroom demonstration the robot orders a volunteer to drop his weapon and gives him twenty seconds to comply, but continues counting after he obeys, with tragic results. The scene became one of the film's most quoted moments, and the ultimatum later spread online as a reaction clip for deadlines, warnings and mock-serious authority.