I seem to have a knack for creating entertaining topics...
I knew the other driver was being a complete and utter idiot but didn't want to say exactly that as I knew he or she would not own up, it was not racing, just joined on a slip road behind said driver, he ended up being a few hundred yards ahead. Stopped at some traffic lights behind the driver, he then completely booted it down the high-street (wheel spinning and @*!#), I was turning off right, he kept on going and going, must of hit at least 70mph down a public high-street