Dr Reflex is a character from the Baldi's Basics games, a series of horror-themed school adventures built around collecting notebooks while avoiding Baldi and other strange staff members. His voice lines are delivered as direct warnings to the player, and this one has circulated mainly through gameplay videos, short edits and soundboard collections. Because the line is short, clear and easy to place at the end of a scene, it has stayed useful for creators making tension-filled gaming content long after first hearing it in play.