Team Fortress 2, Valve's team-based shooter, features the Spy as a stealth class who disguises himself and attacks enemies from behind, and 'Right behind you' is one of his memorable voice lines. Clips of the line spread through gameplay videos, highlight reels, and soundboards, where players reused it to tease opponents and set up backstab moments. Its staying power comes from how instantly recognisable it is to TF2 fans: even without gameplay footage, the calm warning signals a stealthy ambush is coming.