Scary screaming cycling lady (the London Banshee)

sadly it wasn't DJ, unless DJ is a 6ft 2 skinny cockney/Essex lad who cyles about with a pair of horns protruding from the vents in his helmet, noisily venting spleen at the most minor of potential traffic violations.

Have spotted him too, I was picking up my daughter from Nursery and he went past on New Kings Rd - the horns seem to be from a soft toy - my 4yr old asked "is that normal Daddy?"