Please report dangerous drivers to the police - Roadsafe. Report to plod, not just whinge here.

didn't get his number plate either because I was busy trying not to crash

since discovering this thread my ability to remember number plates has increased remarkably, :-)

(but only if then stored on the phone quite soon after whatever misdemeanour occurred!)

ps. from venturing south of the river last night to SE beers my impression of the quality of driving was that it was a bit lacking; somebody almost pulled across me - but stopped about half-way through the manoeuvre; then, as driving past with a horrific look on my face, the white ruffian-looking male-driver gives me impassioned energetic middle-fingers, amusing recollected just now, :-)