First one ever that I can recall hearing about was in Northampton and he was finally 'unmasked' 3 years ago tomorrowWhat the F is this Clown Craze!?
I heard about it a little about it a few months ago. Think it was in America or something. Saw last night it's all over the UK, including Norwich and Kings Lynn!

The rest of the UK is painfully slow to catch on if they've had three years to 'practice'!
I agree, though, it is and can be very disconcerting and scary for kids, lone women and the elderly and frail.
http://www.mirror.co.uk/news/weird-news/northampton-clown-unmasked-alex-powell-2366915
Might as well laugh with them!