While some McDonald s have just one drive-through, others can have up to four lanes, with one staffer responsible for multiple orders. And as you eagerly wait for that long-awaited Macca s fix, many have wondered how staff don t get your order mixed up with other cars in line. Now a Macca s staffer has revealed the secret to the burger chain s foolproof process - leaving minds blown. A TikTok video - shared by user @katieeclarkee - explains the fast-food restaurant have cameras installed in the drive-through area. A McDonaldâs staffer has revealed how they know whose order belong to who at their drive-through. Picture: TikTok/katieeclarkee