Having trawled the entire thread I'm surprised this LHR gem has escaped repetition.
Heard one day when 28L was in use for departures at about the time British Midland were painting their aircraft dark blue.
ATC "Midland 123 line up 28L and cleared take off"
BD123 "Cleared line up take off"
ATC "Speedbird 019 (A Concorde) behind the departing Midland line up and hold
BA 019 Awfully far back "Is that the blue one"
ATC "Afirm"
ATC "KLM 145 behind the departing Concorde line up hold caution reheat and wake"
KL145 As laid back as only the dutch can "Is that the white one?"
Sadly no riposte from Nigel.
Be lucky
David