Angry locals mock up 'Poo-nami' signs to highlight sewage flowing in their streets
![Angry locals mock up 'Poo-nami' signs to highlight sewage flowing in their streets](https://i2-prod.mirror.co.uk/news/uk-news/article32615712.ece/ALTERNATES/s615/0_swns_sewage_signs_05.jpg)
The group of anonymous residents - dubbed the 'Berkshire Banksys' - are taking action over polluted water in Hampstead Norreys. The signs have been praised as a typically British method of protest