The line comes from Lego Marvel Super Heroes, the 2013 Lego action adventure game featuring Marvel characters including the X-Men. Sentinels appear in Marvel comics as large robots programmed to detect and capture mutants, so their dialogue often sounds like a cold identification scan. In the game that serious idea is played through Lego humour, turning a threat into a blunt observation. Clips of the line later circulated on soundboards and in edits as a reusable reaction for anyone who looks unusual, out of place or suspiciously different from the crowd around them.