Peccadillo Circus 

A busy London thoroughfare where local-area delinquents with misdemeanor criminal-records are made to stand on the sidewalks and face traffic with placards detailing what their offenses were (i.e., "I tell lies", "I like to shoplift", "I express myself through graffiti", etc.) as a condition of their parole/release.

I dunno how effective a crime-deterrent it is for someone to stand shame-duty on Peccadillo Circus, but I keep seeing those infamous and similarly-publicly-embarrassing "humiliation-boards" displaying rubber checks that are located near the entrances of convenience stores, and most of said worthless financial instruments seem to just stay there for years, without their writers' appearing to care very much about all the bad publicity generated by same.

Peccadillo Circus by QuacksO October 17, 2019

Crikey! It's like a Piccadilly Circus in here!!! 

Best used to describe a very chaotic noisy scene, when it is quite clearly silent, calm and tranquil

You walk into the doctors waiting room, and it is clearly very quiet, but you can't help but grab your head in agony and say with the poshest English accent you can imagine:

"Crikey! It's like a Piccadilly Circus in here!!!"

Crikey! It's like a Piccadilly Circus in here!!! by gypsymadonna January 18, 2013