So if you take out your headphone leads out its most likely been of your own doing.
----------------
Wrong again. I was specifically asked to after the machine along with the most ridiculous of other not-really-electrical things. Spare SD cards FFS!!! A different sim card!!!! The headphones themselves, FFS and MANY other things. I asked this jobsworth how long this level of security had been going on for and he said 2 years. I asked him why it hadn't happened before to me and, not surprisingly, he had no answer.