The line comes from Valve's 1998 first person shooter Half-Life, where the scientists at Black Mesa repeat stock phrases when Gordon Freeman tries to lead them. This refusal became a favourite quote among players because the scientist says it with total confidence during a disaster. Clips and remixes spread through gaming forums, YouTube edits and Garry's Mod videos, turning the phrase into shorthand for opting out. It remains popular in gaming memes whenever someone wants a polite, nerdy way to say they are not involved.