In the early 80's at Binbrook a mate of mine did a weez that went a bit wrong. Station open days were always really popular with spotters always looking through the gaps in the hangar doors to see the stored a/c in the storage flight hangar. He cut out two cannards from foam, covered them in speedtape and stuck them to the nearest mk6 to the door. He nearly caused a riot with folks demanding to know about the 'secret lightning'. In the end he had to remove them which didn't improve the mood of the mob, some still refused to believe is was a windup. Happy days.