Also discussed was the number of arrows longbow men could fire in a minute (12+), the largest siege engine in the world, policing and speed traps, what would happen if you fired up a 286 that has been sitting in a box for 10 years and a whole host of things that I've forgotten already!

I knew I'd forgotten something, there was discussion about hacking the sensors in wheels that monitor tyre pressures etc., http://www.h-online.com/security/news/item/Known-by-their-wheels-1058068.html