The fan, UN agency has not been named, referred to as police at concerning 21:20 UT1 throughout United's second leg clash against the Spanish giants.
He was indignant by the referee's call to indicate Nani the red card for a high challenge on Alvaro Arbeloa.
Ch Insp tough guy Antill said: "While this recent example could also be amusing, it illustrates the kind of buttery calls we've to cope with on a commonplace within the room.
Shikoni Videon