Several years ago at either Heathrow or Gatwick (not sure which one), there was a fairly large queue of aircraft waiting to get off. All of a sudden someone transmitted over the airwaves "god I'm F,.;~#g bored" the famale controler who by now was getting a bit stressed screamed down the mic "last caller identify yourself" to which the reply came "I said I was F,.;~#g bored not F,.;'~#g stupid".