Whilst I was pulling away from a junction, an common garden unlit POB popped off the pavement and tucked himself between me and the roadie in front. Relatively slow speed (heavy traffic) encouraged POB to keep pace, his legs a frantic blur as he didn't change up (why can't they work the gears?). All very standard and quite amusing so far. Now he's at top speed - it's physically impossible for his legs to spin any faster when *disaster* POB's cap blows off. At full leg-whirring speed he slams on the back brake, doing a perfect 180 degree turn before catching the front wheel on the curb (okay, not that perfect then) and launching himself over the handlebars (tho somehow he still managed to land on his feet - just). Very Impressed. Can't ride for toffee, but it took a fair amount of skill to pull the crash off without eating tarmac. Don't underestimate the POBs!