There was a visit to Southport by HRH Prince Charles back in early 1989, and the 146 used to bring him up landed at RAF Woodvale. The Purple Airspace constrained flying for a bit so we (studes) spent the time talking to the crew about the aircraft etc. Someone, whilst the crew were distracted, zapped the inside of the main gear which went unnoticed until a few days later. I believe there were repercussions as a result both on the Royal Flight and on the UAS. The individual who zapped was "fined" in the LUAS fine book too!!