Am I just really lucky or something?
We had a really dodgy head height metal light fitting in my parents house, they were very loose and I accidentally knocked it. It twisted and began to come off the wall (complete with 8 inch diameter glass frosted globe on top) so I grabbed it. Got a huge shock but I really didn't want to drop it so I slowly lowered it to on to the side of the sink. Must've been holding it about 3 seconds. Took it apart later and the wires inside were really knackered and had become exposed. The interior of the fitting was metal too :\
Stupid design I thought