In Bath? Not disabling your Bluetooth when you don't need it? You may have been under surveillance..
I was going to go with “technologically raped”, but that's a bit sensationalist. Granted I'm probably going a bit over the top, but it looks like some researchers from the University of Bath, my home town, were let loose with various bluetooth tools and equipment. The aim of their research was to do some basic modelling and proof of concept work - mapping interactions, using bluetooth. Astonishingly they captured 10,000 unique devices (supposedly) over 6 months, from various locations.