This quote comes from Five Nights at Freddy's, the 2014 indie horror game created by Scott Cawthon. It is spoken by the Phone Guy during the first night call, where he explains the animatronics' behavior. Online, the line spread far beyond the game because its calm wording is so memorable and easy to reuse ironically. It is still popular in FNAF memes, horror compilations, and edits that pair the quote with a FNAF Jumpscare Scream or other sudden payoff.